Kechi Township v. Freightliner , 592 F. App'x 657 ( 2014 )


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  •                                                                           FILED
    United States Court of Appeals
    Tenth Circuit
    November 13, 2014
    UNITED STATES COURT OF APPEALS
    Elisabeth A. Shumaker
    TENTH CIRCUIT                         Clerk of Court
    KECHI TOWNSHIP; EMPLOYERS
    MUTUAL CASUALTY COMPANY,
    Plaintiffs-
    Appellants/Cross-Appellees,
    v.                                                Nos. 12-3118, 12-3134
    (D.C. No. 6:10-CV-01051-MLB)
    FREIGHTLINER, LLC, n/k/a Daimler                         (D. Kan.)
    Trucks North America, LLC,
    Defendant-Appellee/Cross-
    Appellant.
    ORDER AND JUDGMENT *
    Before GORSUCH, HOLLOWAY, ** and HOLMES, Circuit Judges.
    *
    This order and judgment is not binding precedent except under the
    doctrines of law of the case, res judicata, and collateral estoppel. It may be cited,
    however, for its persuasive value consistent with Federal Rule of Appellate
    Procedure 32.1 and Tenth Circuit Rule 32.1.
    **
    The late Honorable William J. Holloway, Jr., United States Senior
    Circuit Judge, participated as a panel member when oral argument was heard in
    this case but passed away before having an opportunity to vote on or otherwise
    participate in the consideration of this order and judgment. “The practice of this
    court permits the remaining two panel judges if in agreement to act as a quorum
    in resolving the appeal.” United States v. Wiles, 
    106 F.3d 1516
    , 1516 n.* (10th
    Cir. 1997); see also 
    28 U.S.C. § 46
    (d) (permitting a circuit court to adopt
    procedure allowing for the disposition of an appeal where a remaining quorum of
    (continued...)
    After a fire destroyed its machine shop, Kechi Township (“Kechi”) sued
    Freightliner, LLC (“Freightliner”) in a products liability action, alleging that
    Freightliner’s defective design of a truck (“the truck” or “the subject truck”) 1
    caused the conflagration. A jury found Freightliner liable and awarded damages.
    Both parties appeal. Kechi appeals on the ground that the district court
    improperly excluded evidence from the jury’s damages calculation. For its part,
    Freightliner raises two issues: (1) its motion for judgment as a matter of law
    (“JMOL”) was improperly denied, and (2) expert testimony was improperly
    admitted. Having jurisdiction under 
    28 U.S.C. § 1291
    , we affirm the district
    court’s orders denying Freightliner’s motion for JMOL, allowing Kechi’s expert
    witnesses to testify, and barring Kechi’s lay witnesses from testifying as to
    damages.
    I
    At around 12:15 a.m. on December 19, 2007, a fire started at Kechi’s
    machine shop. The fire destroyed the shop and all of its contents, including the
    following pieces of heavy equipment: the subject truck, a John Deere motor
    **
    (...continued)
    panel agrees on the disposition). The remaining panel members have acted as a
    quorum with respect to this order and judgment.
    1
    The parties both refer to the vehicle as a “dump truck.” At trial,
    there was testimony that it was used for “dirt hauling, gravel hauling, and general
    hauling purposes.” Aplt. App. at 246 (Trial Tr., dated Jan. 11, 2012).
    2
    grader, a John Deere tractor, a John Deere mower, a John Deere Gator utility
    vehicle (“the Gator”), two Dixie Chopper mowers, an Allis Chalmers 345 wheel
    loader (“the wheel loader”), and a Chevy dump truck. After an investigation
    traced the fire to the subject truck, Kechi sued Freightliner based on the truck’s
    allegedly defective design in Kansas state court. The case was later removed to
    federal district court on diversity grounds.
    Prior to trial, Freightliner filed motions to exclude the testimony of Kechi’s
    two expert witnesses: Don Birmingham, a fire-origin expert, and Jim Martin, a
    fire-causation expert. Freightliner argued that the experts never inspected any of
    the company’s design drawings or specifications, that they performed inadequate
    research into the origin of the fire, and that they used an untrustworthy exemplar
    truck and battery in their investigations. After conducting a Daubert 2 hearing, the
    district court denied the motion to exclude Mr. Martin’s testimony, finding that
    the absence of the specifications and the reliability of the exemplars were matters
    for the jury and that Mr. Martin was not obliged to rule out every possible
    explanation for the fire. The district court also largely denied the motion to
    exclude Mr. Birmingham’s testimony, though it barred him from testifying as to
    the combustibility of the truck’s insulation.
    During trial, Kechi attempted to elicit from James Day, the man in charge
    2
    Daubert v. Merrell Dow Pharm., Inc., 
    509 U.S. 579
     (1993).
    3
    of the machine shop, testimony regarding the value of the real estate and personal
    property destroyed in the fire. Freightliner filed a motion to exclude Mr. Day’s
    testimony on damages, urging the court to “disallow Mr. Day [from] testify[ing]
    as a lay witness [to] values of the various pieces of [personal] property and real
    property when such testimony is plainly expert testimony under federal law.”
    Aplt. App. at 77 (Mot. & Supp. Mem. to Exclude Pls.’ Damages Evidence, filed
    Jan. 16, 2012). The district court granted the motion with respect to the real
    property on the grounds that the testimony at issue was based entirely on an
    appraisal performed by a third party, and thus constituted hearsay.
    After oscillating somewhat on the question of the personal property, the
    district court ultimately concluded that it would exclude from the jury’s
    consideration damages testimony relating to any heavy equipment other than the
    Gator, the property in the Gator, and certain shop supplies and equipment,
    reasoning that Mr. Day had not demonstrated sufficient familiarity with the value
    of any of the other items. The court likewise declined to allow Lee Caster, who
    was apparently a trustee on the township board, 3 to testify to the value of the real
    estate, ruling that there were “certainly very valid ways to put on testimony as to
    the value of the building [but] that has not been done.” Id. at 800 (Trial Tr.,
    3
    From the briefing and transcript, it is not clear precisely what Mr.
    Caster’s title was at the time he testified. It makes no difference to our analysis.
    4
    dated Jan. 17, 2012). 4
    During its deliberations, the jury had before it a verdict form that asked it
    to itemize damages with respect to only three different things: the Gator, the
    property in the Gator, and certain “shop supplies and equipment.” Id. at 129
    (Verdict, dated Jan. 19, 2012) (capitalization altered). The jury found
    Freightliner liable for the fire and awarded $21,000 in damages.
    The jury’s verdict rendered, Freightliner renewed an earlier-filed motion
    for JMOL pursuant to Federal Rule of Civil Procedure 50. The district court
    denied the motion, declining to “find as a matter of law that the evidence offered
    was overwhelmingly preponderant in favor of [Freightliner].” Id. at 201 (Order,
    filed March 29, 2012). Both parties appealed.
    II
    We first consider Freightliner’s challenge to the district court’s denial of its
    motion for JMOL. Such decisions are reviewed de novo, applying the same
    standard the district court did—namely, that “[a] party is entitled to judgment as a
    4
    As the preceding summary indicates, the district court’s basis (or
    bases) for excluding the testimony is unclear, as the court had earlier cited
    foundation and hearsay concerns, but much of the debate between the parties
    concerned the interplay between expert and lay opinion rules. Because the parties
    now focus on the latter, and because the district court’s ruling can properly be
    affirmed on that ground, we limit our discussion to that issue. See United States
    v. McGlothin, 
    705 F.3d 1254
    , 1266 n.17 (10th Cir.) (reiterating that we are
    authorized to “affirm the district court’s evidentiary rulings on any basis that
    finds support in the record”), cert. denied, --- U.S. ----, 
    133 S. Ct. 2406
     (2013).
    5
    matter of law ‘only if the evidence points but one way and is susceptible to no
    reasonable inferences which may support the opposing party’s position.’” Hysten
    v. Burlington N. Santa Fe Ry. Co., 
    530 F.3d 1260
    , 1269 (10th Cir. 2008) (quoting
    Tyler v. RE/MAX Mountain States, Inc., 
    232 F.3d 808
    , 812 (10th Cir. 2000)).
    With respect to the arguments concerning the admission of the expert
    testimony, “we review de novo the question of whether the district court applied
    the proper standard and actually performed its gatekeeper role in the first
    instance” and then “review the trial court’s actual application of the standard in
    deciding whether to admit or exclude an expert’s testimony for abuse of
    discretion.” Dodge v. Cotter Corp., 
    328 F.3d 1212
    , 1223 (10th Cir. 2003).
    Freightliner questions the district court’s actual application of the standard; it
    does not contend that the court used the wrong standard or failed to perform its
    gatekeeper role. Accordingly, we will reverse only if we find an abuse of
    discretion.
    Lastly, we review the district court’s exclusion of the damages testimony
    under an abuse-of-discretion standard. See James River Ins. Co. v. Rapid
    Funding, LLC, 
    658 F.3d 1207
    , 1212 (10th Cir. 2011).
    III
    In overview, we hold that: (1) Freightliner’s motion for JMOL was properly
    denied; (2) the district court did not abuse its discretion in admitting Kechi’s
    expert testimony; and (3) the district court did not abuse its discretion in
    6
    excluding Kechi’s damages testimony. Our holdings compel us to affirm each of
    the district court’s challenged rulings.
    A
    The first issue presented is whether the district court correctly denied
    Freightliner’s motion for JMOL. Under Kansas law, 5 strict liability for the sale or
    manufacture of a product is only imposed where the plaintiff shows that: “(1) the
    injury resulted from a condition of the product; (2) the condition was an
    unreasonably dangerous one; and (3) the condition existed at the time [the
    product] left the defendant’s control.” Jenkins v. Amchem Prods., Inc., 
    886 P.2d 869
    , 886 (Kan. 1994) (quoting Mays v. Ciba-Geigy Corp., 
    661 P.2d 348
    , 359
    (Kan. 1983)) (internal quotation marks omitted). At trial, Kechi submitted
    evidence on two alleged design defects in the starter motor of the subject truck:
    (1) the use of a bus bar 6 or depopulation stud, 7 and (2) the use of a cap nut. 8 It
    5
    Throughout these proceedings, the parties have rightly agreed that
    Kansas law governs the substantive question of liability, and the district court
    applied that law. See Elm Ridge Exploration Co. v. Engle, 
    721 F.3d 1199
    , 1210
    (10th Cir. 2013) (“A federal court sitting in diversity applies the substantive law
    of the state where it is located . . . .”).
    6
    According to trial testimony, a bus bar is a “wide electrical
    conductor.” Aplt. App. at 512 (Trial Tr., dated Jan. 12, 2012).
    7
    As with many of the technical details in this case, the relationship
    between the bus bar and the depopulation stud is unclear and is not illuminated by
    the briefing. At times, the two objects are discussed in the alternative. See, e.g.,
    Aplt. Opening Br. at 3 (discussing testimony “that the use of a busbar or
    depopulation stud . . . caused a loose connection . . . .” (emphasis added)). At
    (continued...)
    7
    argued that both defects caused loose connections in the motor, which in turn
    caused the fire. As explained below, Kechi made each of the showings required
    by Kansas law, and the district court therefore properly denied Freightliner’s
    motion for JMOL.
    1
    In regards to the first element—the causal connection between the defect
    and the injury—Freightliner submits that it was entitled to JMOL because Mr.
    Martin, Kechi’s expert, attributed the ultimate cause of the fire to “a fault or
    short, and not the loose connection” in the subject truck’s motor. Aplee. Opening
    Br. at 18. Freightliner also maintains that Kechi “failed to sufficiently eliminate
    other reasonable causes of the fire.” 
    Id. at 22
    .
    a
    Freightliner’s suggestion that Mr. Martin’s testimony does not sufficiently
    establish causation parses the legal standard more finely that the cases permit. In
    products liability actions in Kansas, “[p]roximate causation in a proper case may
    7
    (...continued)
    others, the depopulation stud is characterized as an element of the bus bar. See,
    e.g., Aplt. App. at 545 (“I noticed the cap nut on the bus bar depopulation
    stud . . . .” (emphasis added)). For present purposes, the distinction is not
    germane. The important thing to remember is that the depopulation stud is
    associated with the bus bar, not the B+ terminal, a different component discussed
    shortly.
    8
    There was evidence at trial that a cap nut (also referred to in places
    as a “capped nut”) is a “closed-off nut,” in contrast with an “open” or “uncapped
    nut.” Aplt. App. at 1329 (Dep. of Michael Stohler, taken May 2, 2011).
    8
    be shown by circumstantial evidence.” Dieker v. Case Corp., 
    73 P.3d 133
    ,
    145–46 (Kan. 2003) (quoting Farmers Ins. Co. v. Smith, 
    549 P.2d 1026
    , 1033
    (Kan. 1976)) (internal quotation marks omitted). A proximate cause is one
    “which in natural and continuous sequence, unbroken by an efficient intervening
    cause, produces the injury, and without which the injury would not have
    occurred.” Rhoten v. Dickson, 
    223 P.3d 786
    , 801 (Kan. 2010) (quoting Yount v.
    Deibert, 
    147 P.3d 1065
    , 1070 (Kan. 2006)) (internal quotation marks omitted).
    Mr. Martin testified that “[w]hen these connections get loose, we produce
    the resistance, we produce the heat, it begins to melt the insulation.” Aplt. App.
    at 585. Asked on cross-examination whether the heat he held responsible for
    starting the fire “was created by a loose nut,” he responded, “Two loose nuts.”
    
    Id. at 613
     (emphasis added). His other statements from the witness stand were
    entirely consistent with this theory. See, e.g., 
    id. at 589
     (summarizing the chain
    of events leading to the fire). Freightliner homes in on a passage in Mr. Martin’s
    testimony where he opined that the looseness “contributed to the heat that
    produced degradation of the insulation that ultimately resulted in the short” that
    consequently caused the fire. 
    Id. at 620
    . Seen in the light of his other statements
    quoted above, as well as in the light of the overall thrust of his testimony, it is
    obvious that Mr. Martin was not saying that the looseness was but one of several
    causes, each of which could have independently produced the fire; rather, he was
    characterizing the looseness as the first event that kicked off a “natural and
    9
    continuous sequence, unbroken by an efficient intervening cause,” which
    ultimately led to the fire. Rhoten, 223 P.3d at 801 (quoting Yount, 147 P.3d at
    1070) (internal quotation marks omitted).
    Fatally, Freightliner does not point to any other original cause highlighted
    by Mr. Martin, and a review of the record does not reveal one. It is certainly the
    case that, as Freightliner notes, Mr. Martin indicated that it was ultimately a short
    that sparked the flame. But Mr. Martin very clearly theorized that the short itself
    was caused by the loose connection. To claim that the short severed the causal
    connection between the looseness and the fire would turn causation analysis into
    an absurd, impracticable framework. If there is no causation here, it would be
    difficult to see how there would be causation when, say, an individual shoots
    someone, as a series of mechanical events occurs between the pulling of the
    trigger and the entry of the bullet. Cf. Yount, 147 P.3d at 1074 (“[A]lthough it
    cannot be said with absolute mathematical certainty that the defendants’ activities
    caused the house fire, there certainly appears to be sufficient circumstantial
    evidence to create a question of fact concerning causation.”). “It is quite proper
    to use expert testimony to prove the cause of a fire,” Smith, 549 P.2d at 1033, and
    when a loose connection leads to a series of events that culminates in a fire, the
    loose connection is plainly the proximate cause of the fire, see id. at 1034.
    b
    Turning finally to Freightliner’s contention that Kechi “failed to
    10
    sufficiently eliminate other reasonable causes of the fire,” Aplee. Opening Br. at
    22, the contention cannot be sustained. Mr. Birmingham, the fire-origin expert
    called by Kechi, testified that he follows a scientific approach in his work, which
    involves collecting data, developing a hypothesis, testing the hypothesis, and, if
    the hypothesis does not hold up, rejecting it and starting anew. His investigations
    typically begin with an inspection of the scene and an examination of the fire
    patterns.
    Mr. Birmingham followed the same practice in investigating the Kechi
    machine-shop fire. While conducting his inspection, Mr. Birmingham’s attention
    was drawn to the subject truck because of the unusual way in which it had been
    damaged by the fire. In total, he was at the scene for about two hours “looking
    for an area of origin” before he “finally focused in on this truck.” Aplt. App. at
    351. Because he suspected that the fire began around the starter area of the
    subject truck, he called Mr. Martin, the electrical engineer, to look into that
    possibility. During his testimony, Mr. Birmingham was asked what sort of burn
    patterns he would expect to see had the fire started in a trash can, as Freightliner
    speculated (and continues to speculate) may have happened. In that event, he
    responded, the fire damage would have been distributed throughout the structure
    in a different fashion, and the damage to the truck itself would have differed in
    terms of where it was most badly burned.
    Mr. Birmingham’s testimony more than sufficiently excluded potential
    11
    sources of the fire to get the question of causation to the jury. As noted, he
    followed a scientific process and offered a reasonable explanation as to why he
    traced the fire to the subject truck and not another source. If the jury was
    unpersuaded, it could have voted for no liability, but there was no reason for the
    district court to usurp its function and decide the matter itself on a motion for
    JMOL. Cf. Smith, 549 P.2d at 1034 (reversing the exclusion of expert testimony
    because “[b]y [the expert’s] elimination of other possible causes for the fire it
    would appear that his conclusion was reasonable that the fire was the result of
    some defect in the mobile home’s electrical system”). In summary, Freightliner’s
    arguments on causation are meritless.
    2
    Turning to the second element—that “the condition was an unreasonably
    dangerous one,” Jenkins, 886 P.2d at 886 (quoting Mays, 661 P.2d at 359)
    (internal quotation marks omitted)—Freightliner avers that Mr. Martin never
    testified that the use of a bus bar or cap nut is defective in all circumstances. It
    further avers that no evidence showed how the cap nut might have become
    loosened from the terminal and that, at any rate, Mr. Martin thought heat would
    not have resulted from such a loosening. Finally, Freightliner insists that the
    evidence in fact suggested that the connection was tight—as it was in the
    exemplar truck and exemplar cable that the experts used for comparison purposes.
    We are constrained by Kansas law to reject each of these contentions.
    12
    A product is unreasonably dangerous when it “is ‘dangerous to an extent
    beyond that which would be contemplated by the ordinary consumer who
    purchases it, with the ordinary knowledge common to the community as to its
    characteristics.’” Delaney v. Deere & Co., 
    999 P.2d 930
    , 944 (Kan. 2000)
    (quoting Restatement (Second) of Torts § 402A cmt. i) (1965)).
    At trial, the jury was read excerpts of the deposition testimony of Michael
    Stohler, a special investigator for Delco Remy (“Delco”), the company that
    manufactured the truck’s starter. In one of those excerpted passages, Mr. Stohler
    testified that “every electrical connection” must be “secure[d] . . . correctly,” or
    “bad things happen.” Aplt. App. at 1292–93. He further testified that a loose
    connection in a motor like the subject truck’s could create a situation in which it
    is “[p]retty intense, pretty hot for a relatively short period of time.” Id. at 1293.
    Later in the deposition, Mr. Stohler was asked what danger arose from the use of
    a bus bar bracket or depopulation stud on B+ starter terminals, and he responded
    that “[s]parks fly.” Id. at 1305. Mr. Martin confirmed all of these opinions in his
    own testimony. Specifically, he agreed that “[w]hen these connections get loose,
    we produce the resistance, we produce the heat, it begins to melt the insulation.”
    Id. at 585. And he characterized as loose the connections at both the bus bar and
    the B+ terminal.
    Putting this testimony together, the jury could reasonably have inferred that
    the loose connections in the starter posed the risk of causing a fire. It is beyond
    13
    peradventure that an ordinary consumer buying a dump truck does not expect it to
    burst into flames. Cf. Betts v. Gen. Motors Corps., 
    689 P.2d 795
    , 799 (Kan.
    1984) (holding that a jury could have properly found that a design defect was
    unreasonably dangerous where it led to the placement of a fuel tank in a part of
    the car where it later caused a fire when punctured in an accident). The
    “unreasonably dangerous” element was satisfied for JMOL purposes. 9
    3
    The third element of strict products liability claims is that “the condition
    existed at the time [the product] left the defendant’s control.” Jenkins, 886 P.2d
    at 886 (quoting Mays, 661 P.2d at 359) (internal quotation marks omitted). On
    this element, Freightliner reads Mr. Martin’s testimony as expressing the view
    that loose connections were likely not an issue when Freightliner first shipped the
    truck from its plant. Freightliner also attacks Mr. Martin’s supposed view “that
    the nut magically backed off the stud” as “illogical.” Aplee. Opening Br. at 13.
    It stresses that Freightliner shipped the truck as a chassis only and that the truck
    9
    Freightliner makes much of the fact that Kechi “did not seek even the
    most basic of fact discovery” to ascertain whether the alleged defects were part of
    Freightliner’s design. Aplee. Opening Br. at 23. However, it points to no legal
    obligation on the part of Kechi to do so. Kechi’s discovery strategy is irrelevant
    to its satisfaction vel non of its burden of proof. It either presented sufficient
    evidence or it did not; it is of no significance where it did or did not get that
    evidence. Kechi got enough of it, and there was therefore sufficient evidence on
    the unreasonable dangerousness of the truck for Kechi to advance this element of
    its claim to the jury.
    14
    was repaired and modified a number of times, thus increasing the likelihood that
    no defect was present at the time the truck left Freightliner’s control. Again,
    Freightliner’s arguments do not justify reversing the district court’s denial of the
    motion for JMOL.
    At the deposition of Mr. Stohler (Delco’s special investigator), an attorney
    read from a Delco bulletin instructing purchasers of its starters, “[D]o not install a
    bus bar bracket or de-population stud on the B plus starter terminals as these
    apply excess mechanical loads and create a safety hazard.” Aplt. App. at
    1300–01. Mr. Stohler was later asked if capped nuts could be used for B+
    terminals on the subject truck model, and he responded that they should not
    because “they can bottom out on some type[s] of terminals so you couldn’t get
    that tight connection.” Id. at 1329. The problem with capped nuts, he explained,
    was that they can “be very deceiving as far as whether or not you have something
    tight.” Id. at 1331. Mr. Stohler had this to say about who provided which parts:
    “[Delco] suppl[ies] . . . an interior nut on the solenoid, and we have an exterior,
    which they take off, put their cables on and then torque it back down. So we
    supply those nuts. Anything additional to that, they supply.” Id. at 1327. 10
    10
    Freightliner interprets this testimony to mean “that Delco Remy is
    responsible for the nut on the B+ terminal, and not” Freightliner. Aplee. Reply
    Br. at 3. A juror might agree. Then again, he might not. Not that long after Mr.
    Stohler made this comment, he was asked, “If that had been a tight connection
    and a proper connection according to Delco standards . . . would there have been
    (continued...)
    15
    Seeking clarification, the attorney later asked him,
    So you’re not necessarily going to worry about what the wires
    look like that are connected to it because you’re just selling the
    starter with the nut on it, and then it’s up to the [purchaser] to
    make the connections and replace it and put the proper torque on
    it; is that correct?
    Id. at 1345. Mr. Stohler agreed that it was.
    None of this testimony is a paradigm of clarity. Reading the transcripts, it
    is often unclear which part of the starter is under discussion, and the witnesses
    were not always as responsive to the questions as one might have hoped.
    Nevertheless, the testimony, such as it is, survives a JMOL challenge. This is so
    because the evidence surveyed above provided a basis for the jury to find that (1)
    Freightliner improperly used a bus bar, and (2) Freightliner improperly used a
    capped nut in its starter. Kechi needed nothing more to surmount the motion for
    JMOL.
    Though Freightliner makes much hay of Mr. Martin’s view that the
    connection likely was not loose when Kechi purchased the subject truck, that
    view is irrelevant to Kechi’s theory of liability. Kechi never argued that the
    connection was loose from the moment it acquired the truck. Its argument has
    10
    (...continued)
    any heat escaping that connection?” Aplt. App. at 1351. He responded,
    “[T]here’d be no problem with that connection.” Id. Given that statement, and
    given the fact that his earlier remarks left open the possibility that Freightliner
    could have replaced the nut on the B+ terminal, a juror could have inferred that
    Freightliner, and not Delco, was responsible for the nut on the B+ terminal.
    16
    always rested on the supposition that the design defect led to the loose
    connection, and the loose connection in turn led to the fire. And that theory is
    entirely consistent with what the jury heard about capped nuts and bus bars. See
    id. at 1300–01 (“[D]o not install a bus bar bracket or de-population stud on the B
    plus starter terminals as these apply excess mechanical loads and create a safety
    hazard.” ); id. at 1329 (capped nuts “can bottom out on some type[s] of terminals
    so you couldn’t get that tight connection”); id. at 1331 (capped nuts can “be very
    deceiving as far as whether or not you have something tight”).
    Freightliner’s suggestion that Kechi’s case rested on an “illogical” narrative
    whereby “the nut magically backed off the stud,” Aplee. Opening Br. at 13, fares
    no better. If Freightliner means to say that the loosening of a connection over
    time is “illogical” and “magical,” that is simply not so. Cf. In re Rhoten, 
    397 F. Supp. 2d 151
    , 165 (D. Mass. 2005) (finding negligence where a “failure to
    affix the proper locking device to . . . power cords . . . caused the development of
    the loose connections,” which in turn caused an electrical fire (emphasis added)).
    In Smith, to be sure, the Kansas Supreme Court did hold that a directed verdict
    was properly granted against the plaintiffs when they had no evidence that loose
    electrical connections in a mobile home existed at the time the mobile home left
    the manufacturer’s control. See 549 P.2d at 1035. But the court did so because
    the plaintiffs’ expert “specifically testified that he looked for an[d] found no
    direct evidence of loose connections,” but “simply inferred that somewhere in that
    17
    area there was a loose electrical connection,” and provided no reason to think it
    was the fault of the manufacturer. Id. This is quite a different case. Kechi
    presented the testimony of two individuals, both thoroughly acquainted with the
    engineering of the starter at issue, both of whom found the connections loose, and
    both of whom provided reasons to trace the looseness back to the original
    design. 11
    Freightliner’s speculations about what may have transpired after Kechi
    bought the subject truck likewise do nothing to shake the district court’s JMOL
    ruling. Mr. Martin testified that the exemplar cable he inspected was
    “essentially . . . identical” to that in the subject truck, an opinion he formed after
    visually examining the two cables and noticing that the exemplar cable said
    “Freightliner” on it and had what Mr. Martin “believe[d] to be a Freightliner
    number” written on it as well. Aplt. App. at 569–70. The exemplar cable had the
    same configuration as the subject truck’s cable, including the alleged design
    defects that led to the fire. Given this explanation, it was reasonable of Mr.
    Martin to rely upon the exemplar, and also reasonable of the jury to base its own
    inferences on his comparison. Cf. Kerrigan v. Maxon Indus., Inc., 223
    11
    Freightliner also relies upon Jacobson v. Ford Motor Co., 
    427 P.2d 621
     (Kan. 1967), for this point, but Jacobson dealt with an incomplete record, a
    car that had been involved in an accident, and no apparent evidence that the
    defect existed at the time it left the manufacturer’s control, see 
    id.
     at 623–24,
    none of which can be said here.
    
    18 F. Supp. 2d 626
    , 642–43 (E.D. Pa. 2002) (permitting an expert witness to testify
    regarding an exemplar where it and the subject machine “were manufactured with
    the same specifications,” even though one “was in a different condition, whether
    due to poor maintenance or to the accident or otherwise”). Mr. Martin’s analysis
    of the exemplar tends to suggest that the defect accompanied the starter off
    Freightliner’s lot.
    Furthermore, on direct examination, Mr. Day, the man in charge of the
    machine shop, was asked “whether or not any large repairs were done to the
    truck” in the sense of anything “other than routine oil changes, things of that
    nature.” Aplt. App. at 248. His response was definitive: “No. Other than the
    clutch being changed. Nothing else happened to it.” 
    Id.
     This testimony further
    supported Kechi’s position that it acquired the subject truck with the defect. Cf.
    Donegal Mut. Ins. v. White Consol. Indus., Inc., 
    852 N.E.2d 215
    , 227 (Ohio Ct.
    App. 2006) (finding sufficient evidence that a design defect was present when it
    left the manufacturer’s control where the owner of the product testified that no
    repairs had been made to it).
    Freightliner notes, however, that a third party modified the truck before it
    came into Kechi’s possession and that the modifications “no doubt required re-
    routing of the wiring to accommodate the new features.” Aplee. Opening Br. at
    13. It would have been inappropriate for the district court to grant Freightliner’s
    motion for JMOL on the basis of such a speculative assertion, when a jury could
    19
    just as reasonably infer from Kechi’s evidence that the defect existed at the time
    Freightliner relinquished control of the subject truck. All of which is to say that
    there was sufficient evidence from which the jury could reasonably have inferred
    the correctness of Kechi’s theory, and that was all it needed to survive the motion
    for JMOL. See, e.g., Bannister v. State Farm Mut. Auto. Ins. Co., 
    692 F.3d 1117
    ,
    1126 (10th Cir. 2012).
    Freightliner maintains, ostensibly as a separate argument from its claims
    regarding the elements of strict products liability, that Kechi’s case was
    impermissibly built upon the “stacking of inferences.” Aplee. Opening Br. at 19.
    The inferences it discerns are (1) “that the design of the exemplar truck included
    a bus bar and cap nut”; (2) that the exemplar truck’s design reflected that of the
    subject truck; and (3) “that a bus bar and cap nut [were] present at the time the
    truck left [Freightliner’s] control.” 
    Id.
     at 20–21.
    “[P]iling presumption and inference upon presumption and inference” is not
    allowed in Kansas, as “a burden of proof may not be met by mere conjecture.”
    McKenzie v. N.Y. Life Ins. Co., 
    112 P.2d 86
    , 90 (Kan. 1941). In an instructive
    passage, the McKenzie court recited the presumptions and inferences necessary to
    substantiate liability:
    To find otherwise the jury would be compelled to presume or
    infer, in the absence of any evidence on the matter, that the
    drinking glass had contained bromides; that Dr. McKenzie had
    taken bromides from it; that the dose was an overdose; that such
    overdose was taken accidentally and that such accidental
    20
    overdose was the cause of death without regard to the acute and
    chronic disease of vital organs disclosed by the post-mortem
    examination . . . .
    
    Id.
     It does not take much to see how inapplicable this language is to the case at
    bar. McKenzie mentions five inferences; each is necessary in combination to
    reach the result. See 
    id.
     Here, the only inferences the jury would have to draw
    from the evidence to find the element satisfied would be either (1) that the
    identity of the exemplars with the subject truck parts suggests that the defects
    existed at the time the truck left Freightliner’s control, or (2) that the testimony
    that Kechi never had significant repairs done suggests the same. Both are
    reasonable, and each is sufficient standing alone.
    In recognition of the fact that it will often be difficult to prove with direct
    evidence the control element, the Kansas Supreme Court has declined to unsettle
    a jury verdict where the element was met purely on the basis of testimony that a
    defective part had not been tampered with after purchase. See Dieker, 73 P.3d at
    147. 12 There is even less reason to do so in the present case, where the exemplar
    testimony militates in favor of the same result. Accordingly, all of the elements
    of strict products liability were sufficiently met for the jurors to cast their votes.
    We therefore affirm the district court’s order denying Freightliner’s motion for
    12
    Dieker mentions other facts in its analysis, but none go to the
    question of whether the defect may have arisen later, which is the precise point at
    issue here. See 73 P.3d at 147.
    21
    JMOL.
    B
    The JMOL issue resolved, we next consider Freightliner’s argument that
    Kechi’s experts should not have been allowed to testify. Expert testimony in
    federal court is governed by Federal Rule of Evidence 702, 13 which provides:
    A witness who is qualified as an expert by knowledge, skill,
    experience, training, or education may testify in the form of an
    opinion or otherwise if: (a) the expert’s scientific, technical, or
    other specialized knowledge will help the trier of fact to
    understand the evidence or to determine a fact in issue; (b) the
    testimony is based on sufficient facts or data; (c) the testimony
    is the product of reliable principles and methods; and (d) the
    expert has reliably applied the principles and methods to the facts
    of the case.
    Reliability is looked at in light of a number of non-exhaustive, “nondispositive
    factors: (1) whether the proffered theory can and has been tested; (2) whether the
    theory has been subject to peer review; (3) the known or potential rate of error;
    and (4) the general acceptance of a methodology in the relevant scientific
    community.” 103 Investors I, L.P. v. Square D Co., 
    470 F.3d 985
    , 990 (10th Cir.
    13
    The parties correctly agree that federal law governs this question.
    See Sims v. Great Am. Life Ins. Co., 
    469 F.3d 870
    , 879 (10th Cir. 2006) (noting
    that the doctrine of Erie R.R. Co. v. Tompkins, 
    304 U.S. 64
     (1938), does not
    govern Federal Rules of Evidence that were passed by Congress as part of the
    original Rules); see also An Act to Establish Rules of Evidence for Certain Courts
    and Proceedings, Pub. L. No. 93-595, 
    88 Stat. 1926
     (1975) (Congress enacting
    Rule 702); Huss v. Gayden, 
    571 F.3d 442
    , 452 (5th Cir. 2009) (noting that the
    Federal Rules of Evidence govern the admissibility of expert testimony in a
    diversity case); US Salt, Inc. v. Broken Arrow, Inc., 
    563 F.3d 687
    , 691 (8th Cir.
    2009) (same).
    22
    2006). We have emphasized that this framework is a “flexible” one, United
    States v. Turner, 
    285 F.3d 909
    , 912 n.4 (10th Cir. 2002), and have acknowledged
    a district’s court’s “broad discretion to consider a variety of other factors,”
    Dodge, 
    328 F.3d at 1222
    . 14
    Freightliner challenges the reliability of both of Kechi’s experts. As
    explained shortly, Mr. Birmingham’s opinions were reliable because he followed
    a methodical, scientific process, and because his failure to interview two
    employees of the machine shop was not fatal in light of his thorough investigation
    of the scene and compelling reasons for tracing the fire to the subject truck.
    Similarly, Mr. Martin’s opinions were reliable because he presented a detailed
    14
    In Kechi’s view, Freightliner fails to argue the proper standard of
    review on this issue—abuse of discretion—and thereby waives any claim against
    the testimony of either witness. But in its first brief, Freightliner did indeed
    clearly and accurately state the proper standard of review. See Aplee. Opening
    Br. at 24 (“This Court reviews de novo whether the trial court properly performed
    its role as ‘gatekeeper,’ and reviews for an abuse of discretion the manner in
    which the role is performed.”); United States v. Allen, 
    603 F.3d 1202
    , 1212 (10th
    Cir. 2010) (stating the same). Although Kechi takes Freightliner to task for not
    reiterating this same standard every time it articulates the district court’s
    purported error, our law does not require such a strained, technical, impractical
    application of briefing standards. See Fed. R. App. P. 28(a)(8)(A) (providing that
    an appellant’s argument section in its brief “must contain . . . appellant’s
    contentions and the reasons for them, with citations to the authorities and parts of
    the record on which the appellant relies”). Freightliner properly alerted us to the
    appropriate standard of review and then explained the errors it believes constitute
    abuses of discretion. In so doing, it saved us the burden of “mak[ing] arguments
    for [it],” United States v. Yelloweagle, 
    643 F.3d 1275
    , 1284 (10th Cir. 2011), and
    thus did not waive anything on appeal as respects the standard of review
    governing this issue.
    23
    theory as to how the fire began, based on his extensive training, his diligent
    inspection of the scene and the subject truck, and his use of trustworthy
    exemplars. As a result, we affirm the district court’s decision to allow both
    experts to testify.
    1
    It is Freightliner’s position that Mr. Birmingham, the fire-origin expert,
    should not have been allowed to testify because he failed to investigate
    “numerous burn patterns throughout the building,” and because he neglected to
    account for the possibility that the fire may have been started by a wood-burning
    stove in the shop or by the disposal of its ashes in a plastic container. Aplee.
    Opening Br. at 33. Along the same lines, Freightliner finds that Mr.
    Birmingham’s decision not to interview two employees at the shop rendered his
    investigation into the fire fatally defective and violated the National Fire
    Protection Association’s “NFPA 921” recommendations for fire investigations.
    Freightliner’s assertions regarding Mr. Birmingham’s investigation are not
    borne out by the record. First, as Kechi rightly notes, Mr. Birmingham flatly and
    repeatedly stated that he was familiar with NFPA 921 and did follow it in his
    investigation. See Aplt. App. at 1147–48, 1180 (Daubert Hr’g Tr., dated Jan. 4,
    2012). And there is no evidence to the contrary. Furthermore, even if the district
    court had questioned the credibility of this testimony (which it did not), that
    would not have been an appropriate reason to exclude it. See Compton v. Subaru
    24
    of Am., Inc., 
    82 F.3d 1513
    , 1520 (10th Cir. 1996) (holding that a district court
    properly allowed an expert to testify despite an “extremely low” opinion of his
    credibility because “the weight and credibility of [his] testimony were issues for
    the jury”), overruled on other grounds by Kumho Tire Co. v. Carmichael, 
    526 U.S. 137
     (1999); see also Lapsley v. XTEK, Inc., 
    689 F.3d 802
    , 805 (7th Cir.
    2012) (“A Daubert inquiry is not designed to have the district judge take the
    place of the jury to decide ultimate issues of credibility and accuracy.”).
    Moreover, assuming arguendo that it could be demonstrated that Mr. Birmingham
    did not follow NFPA 921, it is far from evident that, in itself, this would compel
    exclusion. See Russell v. Whirlpool Corp., 
    702 F.3d 450
    , 455 (8th Cir. 2012)
    (holding that while “NFPA 921 qualifies as ‘a reliable method endorsed by a
    professional organization,’” it is not “the only reliable way to investigate a fire”
    (quoting Fireman’s Fund Ins. Co. v. Canon U.S.A., Inc., 
    394 F.3d 1054
    , 1058–59
    (8th Cir. 2005)) (internal quotation marks omitted)).
    Moreover, Mr. Birmingham’s failure to speak with the two employees did
    not render his opinion unreliable under Rule 702. Mr. Birmingham had conducted
    over 1000 fire investigations prior to the hearing, more than two dozen of which
    concerned vehicles; he had worked in the field since 1979; and he had attended
    “numerous” training and certification seminars, Aplt. App. at 1146. At the
    Daubert hearing, Mr. Birmingham testified that after inspecting the area and the
    fire patterns, he “narrowed the area of origin down to” the subject truck. 
    Id.
     at
    25
    1142. It was no abuse of discretion for the district court to find this investigation
    sufficiently reliable for Mr. Birmingham to appear before the jury.
    Freightliner presents no authority holding that an expert is required to
    interview every potential source of information in order to pass the Daubert test.
    It is especially noteworthy that Mr. Birmingham indicated that he surveyed the
    fire patterns on the premises and “narrowed” the potential sources of the fire
    down to the subject truck, 
    id.,
     as his wording suggests that he conducted a broad
    inspection of the shop and excluded other potential origins before arriving at his
    theory. That is exactly how an expert is supposed to operate. See Fed. R. Evid.
    702 advisory committee’s note (2000) (noting that a district court should ask
    “[w]hether the expert has adequately accounted for obvious alternative
    explanations” in evaluating reliability under Rule 702); cf. In re Cooper Tire &
    Rubber Co., 
    568 F.3d 1180
    , 1188 (10th Cir. 2009) (giving persuasive weight to
    advisory committee notes while interpreting the Federal Rules of Civil
    Procedure); Martinez v. Sullivan, 
    881 F.2d 921
    , 928 (10th Cir. 1989) (giving
    persuasive weight to advisory committee notes while interpreting the Federal
    Rules of Evidence); cf. also Square D Co., 
    470 F.3d at
    990–91 (determining that
    the district court did not abuse its discretion in excluding expert testimony where
    the expert fire investigator failed to discount another possible cause of the fire).
    As Kechi fairly remarks, if Freightliner had concerns about the
    thoroughness of Mr. Birmingham’s investigation, it could easily have expressed
    26
    those through cross-examination and closing argument. Cf. Gomez v. Martin
    Marietta Corp., 
    50 F.3d 1511
    , 1519 (10th Cir. 1995) (concluding that expert
    testimony was not impermissibly speculative in part because the other side “cross-
    examined [the] expert on the asserted weaknesses of [the expert’s] assumptions
    and presented expert testimony in its favor. While the weaknesses in the data
    upon which [the] expert relied go to the weight the jury should have given her
    opinions, they did not render her testimony too speculative as a matter of law.”).
    There was no abuse of discretion in admitting Mr. Birmingham’s testimony.
    2
    Freightliner believes that testimony by Kechi’s other expert, Mr.
    Martin—the electrical engineer who studied the fire’s cause—was also admitted
    in error. In particular, Freightliner argues that because “Mr. Martin did not
    consult, review, or analyze a single design drawing relating to” the subject truck,
    he “possessed no knowledge of [Freightliner’s] design process” and thus “should
    not have been allowed to offer any opinions” regarding the truck. Aplee. Opening
    Br. at 26. Freightliner targets Mr. Martin’s testimony regarding the exemplar
    parts in particular, as he failed to personally examine the exemplar truck, which
    allegedly “was of unknown origin, unknown use, and unknown repair history.”
    Id. at 27. Similarly, according to Freightliner, Mr. Martin had no assurance that
    the exemplar cable was identical to the one from the subject truck or that it was
    manufactured by the same company.
    27
    Freightliner finds further fault with Mr. Martin for flouting the
    recommendations advanced by NFPA 921—specifically, its instruction to exclude
    all potential causes of a given fire by process of elimination—which he did not
    heed when he “rest[ed] fully on the assumptions of Mr. Birmingham as to fire
    origin, and subsequently concerned himself and his opinions only with the
    incident truck.” Id. at 29–30. Lastly, Freightliner takes issue with Mr. Martin’s
    testimony at the hearing regarding how insulation in the truck spread the fire, as
    he “admitted that he was only assuming that the cables were insulated” with a
    flammable substance and had no actual knowledge on the issue. Id. at 30.
    As with its grievances concerning Mr. Birmingham’s reliability under Rule
    702, Freightliner’s problems with Mr. Martin’s testimony all boil down to a
    complaint that he did not perform the investigation a different expert might have
    performed; the grievances do not shake the district court’s reliability
    determination regarding the investigation Mr. Martin actually did perform. That
    investigation was unquestionably thorough. At the Daubert hearing, Mr. Martin
    recounted his forty-one years of experience in the field and his investigation of
    approximately 1200 fires, roughly 150 of them involving vehicles. He then
    presented a detailed theory as to how the fire began, with reference to highly
    specific components of both the exemplar engine and the destroyed truck’s
    28
    engine, both of which he had spent considerable time studying. 15 The district
    court acted well within its discretion in finding his explanation sufficient to
    permit him to testify as an expert.
    Freightliner’s protestations notwithstanding, the law did not require Mr.
    Martin to consult design drawings in order to offer his opinion on the fire, given
    that he based his opinions on a perfectly plausible alternative method: extensive
    study of the subject truck’s engine and comparison of that engine with an
    exemplar. Cf. Bourelle v. Crown Equip. Corp., 
    220 F.3d 532
    , 536–37 (7th Cir.
    2000) (affirming a district court that properly excluded expert testimony where
    the expert failed to prepare design drawings and failed to do anything else that
    would have rendered his opinion reliable under Daubert). Moreover, Mr. Martin
    offered a perfectly plausible explanation for why he felt no need to examine any
    design drawings—that is, because the physical evidence at the scene of the fire
    was sufficient in view of the fact that he understood “how the system is
    configured.” Aplt. App. at 1205. To impose the narrow and confining
    15
    Mr. Martin’s theory of the fire, as expressed at the Daubert hearing,
    was as follows: Mr. Birmingham directed him to the subject truck as the likely
    point of origin. While inspecting the area around the truck, Mr. Martin
    discovered that two of the terminals on one of the cables were welded together,
    suggesting the work of excessive heat. He also noticed that one of the nuts was
    loose, and he was aware that such looseness could produce heat. His inspection
    of the insulation at the scene and his comparison with the insulation of the
    exemplar cable indicated to him that the fire had spread through the insulation
    material.
    29
    requirement on an expert that Freightliner proposes would convert the “flexible”
    Daubert inquiry, United States v. Baines, 
    573 F.3d 979
    , 988 (10th Cir. 2009), into
    an overbearingly rigid one.
    Freightliner’s contentions regarding the exemplars are similarly unavailing.
    Mr. Martin explained that he relied upon the exemplar cable to form an opinion
    about the fire because it had a part number consistent with the part number of the
    subject truck’s cable, because it said “Freightliner” on it, and because the cables
    had the same configuration. These are all good enough reasons for purposes of
    Daubert’s reliability inquiry. Of course Mr. Martin could not be 100% sure the
    cables were identical, but Rule 702 does not require “absolute certainty.” Gomez,
    
    50 F.3d at 1519
     (quoting Jones v. Otis Elevator Co., 
    861 F.2d 655
    , 662 (11th Cir.
    1988)) (internal quotation marks omitted). All that is required is “that the method
    employed by the expert in reaching the conclusion is scientifically sound and that
    the opinion is based on facts that satisfy Rule 702’s reliability requirements,”
    Goebel v. Denver & Rio Grande W. R.R. Co., 
    346 F.3d 987
    , 991 (10th Cir. 2003),
    and Mr. Martin’s process with the exemplar cable met that standard. 16
    Freightliner’s argument regarding Mr. Martin’s supposed noncompliance
    16
    Mr. Martin’s comments at the Daubert hearing regarding the
    exemplar truck were not as extensive as those he offered about the exemplar
    cable. However, for his belief that the exemplar truck was the same model as the
    subject truck, he relied on his own visual inspection of the burned truck and the
    photographs, as well as the assurances of his colleague Mr. Birmingham—all
    reasonable sources for an expert.
    30
    with NFPA 921 is as fruitless as its similar argument with respect to Mr.
    Birmingham. Like Mr. Birmingham, Mr. Martin did swear that he followed the
    recommendations made in NFPA 921, see Aplt. App. at 1206–07; as with Mr.
    Birmingham, the district court had no evidence to the contrary; and, as discussed,
    NFPA 921 is not the be-all and end-all in the reliability of fire investigations, see
    Russell, 702 F.3d at 455 (noting that while “NFPA 921 qualifies as a reliable
    method endorsed by a professional organization,” it is not “the only reliable way
    to investigate a fire” (citation omitted) (internal quotation marks omitted)).
    Regarding Freightliner’s argument that Mr. Martin failed to exclude other
    potential sources of the fire outside of the truck, and instead improperly deferred
    to his colleague Mr. Birmingham on that point, Freightliner makes no showing
    that such deference was improper. It is not unusual for courts to distinguish
    between expert testimony on a fire’s cause and expert testimony on a fire’s origin.
    See, e.g., Weisgram v. Marley Co., 
    169 F.3d 514
    , 519 (8th Cir. 1999) (permitting
    a fire investigator to testify about the origins of a fire, but not its cause). Kechi
    reasonably points out that Mr. Martin was only there for the former. See Aplt.
    App. at 1207 (Mr. Martin testifying at the Daubert hearing that Mr. Birmingham
    was the origin expert). As such, his charge was to ascertain how a fire might
    have started in the subject truck, not how it might have begun elsewhere in the
    shop. See 
    id.
     at 1207–08 (Mr. Martin observing that Mr. Birmingham completed
    the origin investigation). Freightliner offers no authority suggesting that such a
    31
    division of labor is inappropriate, and we have no reason to suppose the district
    court abused its discretion in allowing it. See, e.g., Hartford Ins. Co. v. Gen.
    Elec. Co., 
    526 F. Supp. 2d 250
    , 255 (D.R.I. 2007) (discussing a case involving
    separate experts on fire cause and fire origin).
    Freightliner next characterizes Mr. Martin’s theory that the insulation
    spread the fire as overly speculative. Though expert testimony can properly be
    excluded as unreliable where it is based on “assumptions . . . that [are] not
    supported by the evidence,” Truck Ins. Exch. v. MagneTek, Inc., 
    360 F.3d 1206
    ,
    1213 (10th Cir. 2004), Mr. Martin’s comments on the insulation were supported
    by his inspection of the incinerated insulation at the scene, his comparison of that
    insulation with the insulation in the exemplar cable, and his many years of
    experience studying fires that spread through insulation. The comments of Mr.
    Martin did not render his proffered testimony unreliable. 17 To conclude, we see
    no abuse of discretion in the district court’s decision to permit Messrs.
    17
    In its reply brief, Freightliner focuses on the district court’s
    inconsistency in excluding Mr. Birmingham from discussing the insulation issue
    but then allowing Mr. Martin to explore the matter from the stand, “even though
    he admitted numerous times that he was not retained to offer origin opinions.”
    Aplee. Reply Br. at 7. This is not an argument about Mr. Martin’s qualifications
    to testify as an expert, but about what he said while so testifying. Furthermore, as
    an argument omitted from the opening brief and inadequately discussed in the
    reply brief, it is not properly presented to us. See, e.g., Bronson v. Swensen, 
    500 F.3d 1099
    , 1104 (10th Cir. 2007) (“[W]e routinely have declined to consider
    arguments that are not raised, or are inadequately presented, in an appellant’s
    opening brief.”).
    32
    Birmingham and Martin to testify, and consequently affirm its orders allowing
    them to do so.
    C
    Our final issue concerns the district court’s decision to exclude most of
    Kechi’s damages evidence. Although this ruling presents a closer question, we
    nonetheless find that—as with the preceding issues—the district court acted
    properly in this regard. We therefore affirm its order.
    1
    Kechi offered its damages evidence in the form of lay opinion testimony by
    Messrs. Day and Caster. As a matter of federal law, lay opinion testimony is
    governed by Federal Rule of Evidence 701. That rule provides that
    [i]f a witness is not testifying as an expert, testimony in the form
    of an opinion is limited to one that is: (a) rationally based on the
    witness’s perception; (b) helpful to clearly understanding the
    witness’s testimony or to determining a fact in issue; and (c) not
    based on scientific, technical, or other specialized knowledge
    within the scope of Rule 702.
    Fed. R. Evid. 701. Here, the dispute is over subsection (c), i.e., whether Kechi’s
    damages evidence was actually expert testimony and thus inadmissible as lay
    testimony. We have explained that Rule 701(c) is covered by the Erie doctrine, 21
    as it was added to the Rules by amendment under the Rules Enabling Act, 28
    21
    Erie R.R. Co., 
    304 U.S. at 78
     (“Except in matters governed by the
    Federal Constitution or by acts of Congress, the law to be applied in any
    [diversity] case is the law of the state.”).
    
    33 U.S.C. § 2072
    , and was therefore not an act of Congress outside Erie’s scope.
    See James River, 
    658 F.3d at 1218
    . As such, in the event of a conflict between
    Rule 701(c) and a state evidentiary rule, the federal rule must yield to its state
    counterpart unless “application of the federal rule represents a valid exercise of
    the rulemaking authority.” 
    Id.
     (quoting Shady Grove Orthopedic Assocs., P.A. v.
    Allstate Ins. Co., 
    559 U.S. 393
    , 422 (2010) (Stevens, J., concurring)) (internal
    quotation marks omitted). Application of a federal rule is not such a valid
    exercise where it “abridge[s], enlarge[s] or modif[ies] any substantive right.” 
    Id.
    (quoting Shady Grove, 
    559 U.S. at 422
     (Stevens, J., concurring)) (internal
    quotation marks omitted).
    Our approach in the case at bar is as follows. We first inquire whether
    federal law supports excluding the damages testimony and conclude that, if
    applied, federal law would counsel in favor of upholding the district court’s
    decision as a proper exercise of its discretion. We then turn to Kansas law. If
    state and federal law are consistent, the evidence could be subject to exclusion
    under either code. However, if Kansas law is demonstrably inconsistent with
    federal law such that it would point toward admission of the evidence, we would
    ask whether application of the federal rule affects a substantive right—and, if it
    would not, the federal rule would control, permitting exclusion of the damages
    testimony.
    In this case, however, we are able to resolve the issue at the second step of
    34
    our analytical process because Kechi has failed to evince any conflict between
    state and federal law. Consequently, we refrain from opining on whether
    application of federal law affects a substantive right. We likewise abstain from
    predicting how the Kansas courts would construe the import of their state’s law
    regarding the damages testimony at issue here. Cf. Proctor & Gamble Co. v.
    Haugen, 
    222 F.3d 1262
    , 1280 (10th Cir. 2000) (declining to weigh in on a
    question of state law in the absence of guidance from the state’s highest court);
    cf. also Royal Capital Dev., LLC v. Md. Cas. Co., 
    659 F.3d 1050
    , 1055 (11th Cir.
    2011) (noting that “an authoritative statement from [a state] supreme court”
    concerning state law “is much better than a conjectural statement” from a federal
    court on state law). In other words, absent a showing by Kechi of a federal-state
    legal incongruity, we are content to operate on the premise that the two codes are
    consistent and would allow for the same outcome. Thus, crediting the district
    court’s discretionary determination that the testimony of Messrs. Day and Caster
    was too complex to come in under Rule 701, we affirm its decision that Kechi
    was not permitted to introduce it.
    2
    Consistent with the framework discussed above, the first predicate question
    is whether the damages evidence—either as to the real estate or as to the heavy
    35
    equipment 18—was properly excluded under federal law. In answering this
    question, we are guided by the settled principle that “[a] district court has broad
    discretion to [make decisions] under Rule 701.” United States v. Banks, 
    761 F.3d 18
    As indicated in the fact section supra, the jury was instructed to
    assess damages on only three items: (1) the Gator, (2) the property in the Gator,
    and (3) certain “shop supplies and equipment.” Aplt. App. at 129 (capitalization
    altered). Presumably, since the district court allowed the jury to award damages
    on these three items, while excluding damages testimony as to the other heavy
    equipment and real estate and likewise omitting any instruction on either, it
    believed the evidence was proper on the three items. However, Freightliner
    makes a number of confusing statements that could be read to suggest that it
    understands the district court to have admitted all of Kechi’s damages evidence
    (that is, not just the three items), and that it understands itself to be arguing
    chiefly for reversal. See, e.g., Aplee. Opening Br. at 1 (framing the issue as
    “[w]hether the trial court improperly allowed Mr. Day to testify pursuant to
    [Federal Rule of Evidence] 701 as the alleged ‘owner’ of the damaged property”);
    id. at 38–39 (“Mr. Day was . . . permitted . . . to offer testimony relating to the
    heavy equipment and personal property that was damaged in the fire.” (emphasis
    added)); id. at 39 (“[T]he Trial Court improperly allowed Mr. Day to testify as
    owner.”); id. at 40 (“Mr. Day is not an owner of the property . . . , and his
    testimony should have been excluded.” (emphasis added)). Elsewhere,
    Freightliner appears to acknowledge in passing that the district court excluded at
    least some of the testimony, but it is entirely unclear what testimony it believes
    was admitted. In sum, it is impossible to decipher Freightliner’s account of the
    events at trial, though its brief is replete with mistaken suggestions that it largely
    lost on the damages question when, in fact, it largely won.
    Given our institutional “preference for affirmance,” Richison v. Ernest
    Grp., Inc., 
    634 F.3d 1123
    , 1130 (10th Cir. 2011), Freightliner’s apparent
    confusion over the district court’s exclusion of most of the damages evidence
    does not affect our analysis of that decision. It is another matter, however, with
    respect to the evidence supporting the damages that were awarded. Because
    Freightliner would have to seek reversal if it wanted to question the admission of
    that evidence, and because it fails to make any specific argument to that effect,
    we will not make an argument on its behalf, see Yelloweagle, 
    643 F.3d at 1284
    ,
    and will instead affirm the district court’s award of damages. The discussion that
    follows above does not encompass the items on which damages were awarded.
    36
    1163, 1200 (10th Cir.) (quoting United States v. Garcia, 
    994 F.2d 1499
    , 1506
    (10th Cir. 1993)) (internal quotation marks omitted), cert. denied, --- U.S. ----,
    
    135 S. Ct. 308
     (2014); see United States v. Goodman, 
    633 F.3d 963
    , 969 (10th
    Cir. 2011) (observing the district court’s sound “discretion to exclude lay witness
    testimony for other reasons contemplated by the Federal Rules of Evidence,
    among them . . . Rule 701”); Gust v. Jones, 
    162 F.3d 587
    , 595 (10th Cir. 1998)
    (“[T]he admission of lay opinion testimony is within the sound discretion of the
    trial court.”); Getter v. Wal-Mart Stores, Inc., 
    66 F.3d 1119
    , 1124 (10th Cir.
    1995) (underscoring the discretionary nature of the district court’s “determination
    of a lay witness’s qualification to testify” under Rule 701).
    Our strong deference to such rulings is grounded in “the trial court’s
    familiarity with the case and experience in evidentiary matters.” Elm Ridge
    Exploration Co., 721 F.3d at 1213 (quoting Abraham v. BP Am. Prod. Co., 
    685 F.3d 1196
    , 1202 (10th Cir. 2012)) (internal quotation marks omitted). Thus,
    when assaying for abuse of discretion, we will not unsettle the district court’s
    decision absent “a definite and firm conviction that the lower court made a clear
    error of judgment or exceeded the bounds of permissible choice in the
    circumstances.” Headwaters Res., Inc. v. Ill. Union Ins. Co., --- F.3d ----, 
    2014 WL 5315090
    , at *11 (10th Cir. 2014) (quoting Phelps v. Hamilton, 
    122 F.3d 1309
    , 1324 (10th Cir. 1997)) (internal quotation marks omitted).
    In finding no abuse of discretion here, we are guided in part by our
    37
    reasoning in James River. By way of background, in James River we held that
    the district court committed reversible error when it allowed a landowner to
    testify to his property’s value as a lay witness under Rule 701. We did so on the
    basis that this exercise would have required the landowner “to calculate a post-
    fire estimate of the pre-fire value of a dilapidated, condemned, 39-year old
    building.” James River, 
    658 F.3d at 1214
    . Such calculations, we said,
    necessitated “[t]echnical judgment” and were based partly on the landowner’s
    experience in real estate and his reliance “on a technical report by an outside
    expert.” 
    Id.
     at 1214–15. In other words, we reasoned, this was not a situation
    where the landowner’s “opinions or inferences [did] not require any specialized
    knowledge and could be reached by any ordinary person.” 
    Id. at 1214
     (quoting
    LifeWise Master Funding v. Telebank, 
    374 F.3d 917
    , 929 (10th Cir. 2004))
    (internal quotation marks omitted). Importantly, we also noted that “the Federal
    Rules of Evidence generally consider landowner testimony about land value to be
    expert opinion.” Id. at 1215.
    To be sure, James River did not entirely foreclose the possibility of
    deeming property-value testimony admissible under Rule 701. We acknowledged
    the same in a footnote—viz., that “[a]lthough . . . the Rule 702 advisory
    committee note point[s] to landowner testimony on value as being expert in
    nature, with proper foundation, it may in the appropriate case be admitted as lay
    opinion under Rule 701.” Id. at 1215 n.1 (emphasis added) (citation omitted).
    38
    Yet, in no uncertain terms, we instructed that the district court’s inquiry turns on
    the complexity of the property right at stake and, more specifically, on whether
    the “valuations [are] based on straightforward, common sense calculations.” Id.
    at 1216 (internal quotation marks omitted).
    Looking to James River, first of all, we are satisfied that the district court
    operated within a permissible range of discretion in finding that Mr. Day’s
    proffered testimony regarding the heavy equipment at issue was too complex to
    qualify for admission under Rule 701. The machines involved in this case were
    large, specialized, expensive pieces of equipment, and Mr. Day’s descriptions of
    them sufficiently show that his opinion of their worth was based upon his
    specialized, technical, professional experience working with them. See, e.g.,
    Aplt. App. at 315 (Mr. Day explaining his valuation of the lawn mowers with
    reference to the fact that they “were 25 horse, 60-inch cut. They’re all hydrostat.
    They’ve got dual cooling on ’em. Dual oil filters.”); id. at 316 (explaining his
    valuation of the tractor with reference to the fact that “it was a four-wheel drive,
    you know, farmers, four-wheel drive, they can put duals, it was equipped ready to
    put duals on the front and back if you needed to”); see also Aplt. Opening Br. at
    10–11 (tallying up Mr. Day’s estimates of the eight machines’ values as in the
    several hundred thousand dollars range). In short, the district court did not abuse
    its discretion when it classified Mr. Day’s testimony as grounded on technical
    knowledge of the sort possessed by an expert. By extension, the district court did
    39
    not abuse its discretion when it ruled that the damages testimony could not come
    in under the auspices of Federal Rule of Evidence 701. 19
    The testimony as to the valuation of the real estate—which would have
    been offered by Mr. Day and Mr. Caster—poses a slightly closer question. 20
    Unlike the equipment, the real property does not seem to have been particularly
    complex. See, e.g., Aplt. App. at 249 (Mr. Day describing the building as a
    “metal pole barn building with double truss wooden rafters. It was approximately
    60 by 60 on the main part. And then we had an office on the east side that had a
    wall partition between it but it was attached and it was also a tin/wood
    structure.”). Nonetheless, we do not believe the district court “exceeded the
    bounds of permissible choice in the circumstances,” Headwaters Res., Inc., 2014
    19
    In arguing that Mr. Day was qualified to testify to the value of the
    equipment under federal law as a lay opinion witness, Kechi emphasizes that Mr.
    Day was familiar with offers for the purchase of the wheel loader. It offers no
    caselaw to support its contention that this was sufficient to render him a
    competent lay witness. Furthermore, the argument deals with only one piece of
    equipment and does not surmount the bar set by James River, which counsels that
    the technical, specialized nature of an object strongly suggests that its valuation is
    the proper subject for expert testimony.
    20
    In its initial order on this issue, the district court noted that James
    River dealt with real property and not personal property, which it characterized as
    “a big distinction.” Aplt. App. at 94 (Order, filed Jan. 16, 2012). It did not cite
    any cases drawing such a categorical distinction, and James River is based in
    large measure on the complexity of the object being valued, and not at all on the
    legal status of the property. See 
    658 F.3d at 1214
    . As this very case proves,
    personal property can be just as complex—if not more so—than real estate. We
    therefore apply the same analysis to both the real and the personal property.
    
    40 WL 5315090
    , at *11 (internal quotation marks omitted), by finding the building
    complex enough that its valuation qualified as a fitting subject of expert
    testimony. Notably, the James River opinion quoted approvingly from a Third
    Circuit case that held that
    [t]he prototypical example of the type of evidence contemplated
    by the adoption of Rule 701 relates to the appearance of persons
    or things, identity, the manner of conduct, competency of a
    person, degrees of light or darkness, sound, size, weight,
    distance, and an endless number of items that cannot be described
    factually in words apart from inferences.
    James River, 
    658 F.3d at 1214
     (quoting Asplundh Mfg. Div. v. Benton Harbor
    Eng’g, 
    57 F.3d 1190
    , 1196 (3d Cir. 1995)) (internal quotation marks
    omitted). The valuation of the real estate (i.e., the machine shop), as simple as it
    may have been, was certainly more complicated than the valuation of the items in
    this list by an order of magnitude. Furthermore, as noted, James River
    emphasized that “the Federal Rules of Evidence generally consider landowner
    testimony about land value to be expert opinion.” 
    Id. at 1215
    . In addition, James
    River specifically highlighted the specialized knowledge required to estimate
    depreciation after a building is destroyed by fire, see 
    id. at 1214
     (“Technical
    judgment is required in choosing among different types of depreciation.”), which
    is exactly the calculation Kechi’s witnesses would have been required to make.
    Finally, Mr. Day indicated that he would be relying in part on an appraisal for his
    evaluation, much like the “technical report” relied upon by the witness in James
    41
    River, 
    id.
     at 1215—yet another sign that his testimony was unfit for admission
    pursuant to Rule 701.
    To summarize, we are satisfied that the district court properly exercised its
    discretion in concluding that the valuation testimony—both as to the heavy
    equipment and as to the real estate (i.e., the machine shop)—was too specialized
    to qualify as lay witness testimony. See Goodman, 
    633 F.3d at 969
     (noting that
    even if other rationales might support the admission of testimony, “the district
    court still has the discretion to exclude [the] witness testimony” under Rule 701
    (emphasis added)). We therefore will not disturb the district court’s ultimate
    determination that this testimony could not be admitted under Rule 701.
    3
    Having concluded that federal law permits the exclusion of the damages
    testimony, we ask whether Kansas law interposes a conflict. As noted supra,
    however, Kechi has not attempted to argue that Kansas law dictates a different
    outcome. Reading its briefing very liberally, Kechi hints at a possible federal-
    state legal conflict, and the ensuing inquiry into the impact of the federal rule on
    substantive rights, when offering the conclusory remark that invoking federal law
    “would abridge [its] right to present the testimony of Jim Day, as evidence on the
    damages claim.” Aplt. Opening Br. at 26. Even if our liberal construction is on
    target, Kechi’s skeletal allusion is not enough. It is not a legally cognizable
    argument; rather, it is an unsubstantiated, unexplained, uncited assertion. As
    42
    such, we enjoy the discretion to disregard the assertion entirely and proceed on
    the premise that, for purposes of this case, Kansas law can be harmonized with
    federal law. We therefore affirm on that ground alone. See, e.g., Bronson, 
    500 F.3d at 1104
    ; Garrett v. Selby Connor Maddux & Janer, 
    425 F.3d 836
    , 841 (10th
    Cir. 2005) (deeming several issues waived when the support for each consisted of
    “mere conclusory allegations with no citations to the record or any legal authority
    for support”); United States v. Rodriguez-Aguirre, 
    108 F.3d 1228
    , 1237 n.8 (10th
    Cir. 1997) (noting that the appellant bears the burden of tying all salient facts to
    his legal arguments).
    In sum, to return to our starting matrix, it was not an abuse of the district
    court’s discretion to find that the damages testimony could not come in under
    Federal Rule of Evidence 701, as it was specialized expert testimony that should
    have been offered pursuant to Rule 702, if offered at all. Because Kechi has not
    meaningfully argued that state law would permit the testimony, we conclude that
    the evidence, under these circumstances, was correctly deemed inadmissible.
    Accordingly, we hold that the district court did not err in precluding Messrs. Day
    and Caster from testifying as to damages.
    IV
    For the reasons presented above, we AFFIRM the district court’s orders
    denying Freightliner’s motion for JMOL, allowing Kechi’s expert witnesses to
    43
    testify, and barring Kechi’s lay witnesses from testifying as to damages.
    Entered for the Court
    JEROME A. HOLMES
    Circuit Judge
    44
    

Document Info

Docket Number: 12-3118

Citation Numbers: 592 F. App'x 657

Filed Date: 11/13/2014

Precedential Status: Non-Precedential

Modified Date: 1/13/2023

Authorities (43)

fred-w-phelps-sr-jonathan-b-phelps-karl-d-hockenbarger-charles-f , 122 F.3d 1309 ( 1997 )

Tyler v. RE/MAX Mountain States, Inc. , 232 F.3d 808 ( 2000 )

Goebel v. Denver & Rio Grande Western Railroad , 346 F.3d 987 ( 2003 )

Gretchen Getter v. Wal-Mart Stores, Inc. , 66 F.3d 1119 ( 1995 )

Lifewise Master Funding v. Telebank , 374 F.3d 917 ( 2004 )

United States v. Yelloweagle , 643 F.3d 1275 ( 2011 )

Hysten v. Burlington Northern Santa Fe Railway Co. , 530 F.3d 1260 ( 2008 )

Bronson v. Swensen , 500 F.3d 1099 ( 2007 )

44-fed-r-evid-serv-312-prodliabrep-cch-p-14649-steven-d-compton , 82 F.3d 1513 ( 1996 )

United States v. Allen , 603 F.3d 1202 ( 2010 )

Richison v. Ernest Group, Inc. , 634 F.3d 1123 ( 2011 )

United States v. Rodriguez-Aguirre , 108 F.3d 1228 ( 1997 )

67-fair-emplpraccas-bna-537-32-fedrserv3d-183-gaston-gomez , 50 F.3d 1511 ( 1995 )

joseph-dodge-individually-and-as-personal-representative-of-the-estate-of , 328 F.3d 1212 ( 2003 )

United States v. Sergio Garcia , 994 F.2d 1499 ( 1993 )

Truck Insurance Exchange v. Magnetek, Inc. , 360 F.3d 1206 ( 2004 )

emery-duane-gust-and-dennie-g-dighera-v-jeffrey-s-jones-and-willis-shaw , 162 F.3d 587 ( 1998 )

Garrett v. Selby Connor Maddux & Janer , 425 F.3d 836 ( 2005 )

United States v. Turner , 285 F.3d 909 ( 2002 )

In Re Cooper Tire & Rubber Co. , 568 F.3d 1180 ( 2009 )

View All Authorities »