Katherine Liu v. Cook County, Illinois , 817 F.3d 307 ( 2016 )


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  •                                In the
    United States Court of Appeals
    For the Seventh Circuit
    ____________________
    No. 14-1775
    KATHERINE LIU,
    Plaintiff-Appellant,
    v.
    COOK COUNTY, et al.,
    Defendants-Appellees.
    ____________________
    Appeal from the United States District Court for the
    Northern District of Illinois, Eastern Division.
    No. 10 C 6544 — George M. Marovich, Judge.
    ____________________
    ARGUED SEPTEMBER 9, 2015 — DECIDED MARCH 15, 2016
    ____________________
    Before POSNER, MANION, and HAMILTON, Circuit Judges.
    HAMILTON, Circuit Judge. Dr. Katherine Liu worked as a
    general surgeon at Cook County’s Stroger Hospital for more
    than two decades before she lost her surgical privileges and
    was denied reappointment in 2008. Cook County and the
    three individual defendants, Dr. Richard Keen, Dr. James
    Madura, and the estate of Dr. Phillip Donahue, contend that
    those actions were based on Dr. Liu’s repeated refusal to op-
    erate on patients with appendicitis. Dr. Liu claims that their
    2                                                  No. 14-1775
    reasoning masked unlawful discrimination and retaliation.
    She brought a number of claims against defendants, includ-
    ing alleged violations of Title VII of the Civil Rights Act of
    1964, 42 U.S.C. §§ 2000e-2(a) & 2000e-3(a), and 
    42 U.S.C. § 1981
    .
    The district court granted defendants’ motion for sum-
    mary judgment, finding that no reasonable trier of fact could
    conclude their reasons were pretextual. We agree. Dr. Liu
    has presented only the sparsest evidence of animus based on
    her race, sex, and national origin, none of it linked to the de-
    cisions at issue. She has also failed to present evidence creat-
    ing a genuine dispute of fact as to whether the defendants’
    stated reasons for disciplining her were honest. We therefore
    affirm the decision of the district court.
    I. Background
    A. Facts for Summary Judgment
    In assessing whether the defendants were entitled to
    summary judgment, we examine the record in the light most
    favorable to Dr. Liu as the non-moving party, resolve all evi-
    dentiary conflicts in her favor, and grant her all reasonable
    inferences that the record permits. Coleman v. Donahoe, 
    667 F.3d 835
    , 842 (7th Cir. 2012).
    1. The Parties
    Dr. Katherine Liu is an Asian woman of Chinese descent.
    She began working at Stroger Hospital in 1984. With the ex-
    ception of 1985, when she received a “good” performance
    appraisal from the Department of Surgery, she consistently
    received ratings of “excellent” and “superior” up until an-
    nual appraisals were discontinued in 1999.
    No. 14-1775                                                  3
    As for the individual defendants, Dr. Keen was Chairman
    of the Department of Surgery. Dr. Madura was Chair of the
    Surgical Oversight Committee, or SOC. Dr. Donahue was
    Chief of the Division of General Surgery. All three had man-
    agerial responsibilities related to patient care at Stroger.
    In 2001, a patient at Stroger died from a ruptured appen-
    dix. That tragedy prompted Dr. Keen to write to the Hospital
    Surgical Oversight Committee advising that as a corrective
    action the Department of Surgery would admit patients with
    abdominal pain to surgical service so the hospital could rec-
    ognize problems requiring surgery and operate on them ear-
    ly. This pro-surgery approach set the stage for the eventual
    conflict between the defendants and Dr. Liu.
    2. Early Disputes
    Dr. Liu says that the discrimination began in 2003, when
    Drs. Keen and Donahue began sending a disproportionate
    number of her cases to review committees as compared to
    her white male colleagues. Her declaration does not provide
    enough detail about her colleagues to support the claim of
    disproportionality, but she says that throughout 2003 and
    2004, she met with Dr. Bradley Langer, the interim Medical
    Director at the time, to discuss the disparities she perceived.
    She has offered no direct evidence that Drs. Keen and Madu-
    ra harbored animus toward her based on race, sex, or na-
    tional origin. As for Dr. Donahue, Dr. Liu points to a handful
    of inappropriate remarks he made, including: (1) in 2000, he
    called her a “good girl” until she asked him to stop; (2) when
    she requested a raise, he asked why she needed one because
    her husband worked; and (3) he asked Dr. Susan Gilkey out-
    side of Dr. Liu’s presence why all female doctors “have to be
    bitches.”
    4                                                          No. 14-1775
    3. The Appendicitis Cases
    In December 2004, the SOC discussed a case in which Dr.
    Liu treated a nineteen-year-old patient with appendicitis
    non-operatively and the patient suffered a heart attack. The
    minutes indicated that “Timing of operating was delayed”
    and that Dr. Donahue would “counsel Dr. Liu regarding
    treatment of appendicitis.” The minutes also stated, howev-
    er, that “Dr. Liu’s care was deemed adequate.”
    This was the first in a series of clashes between Dr. Liu
    and the Stroger Hospital administration regarding her pro-
    fessional judgment as it pertained to the non-operative
    treatment of appendicitis.1 On April 7, 2005, the SOC met
    and discussed I.G., a patient who presented with appendici-
    tis and whom Dr. Liu treated non-operatively. The minutes
    stated in part:
    Dr. Donahue has counseled Dr. Liu (who is the
    Attending surgeon) about her method of treat-
    ing appendicitis by antibiotics only without in-
    itial surgical intervention as being non-
    conventional. If Dr. Liu is going to treat acute
    appendicitis w/ antibiotics, then it has been re-
    quested that it be done in a prospective man-
    ner under research protocol with IRB approval.
    1 Dr. Liu also received some criticism for non-appendicitis cases over the
    next few years, including a reprimand for delaying an operation in Oc-
    tober 2006, an SOC review of a patient with a “subclinical dehiscence,”
    or partial separation of a previously closed incision, in the same month,
    an order restricting her ability to handle esophageal cases in February
    2007, and a reprimand in August 2007 for a gastroesophagectomy she
    performed. She says all these criticisms were unjustified. The non-
    appendicitis cases do not play a role in our decision.
    No. 14-1775                                                 5
    There was no further discussion necessary, because the care
    was deemed appropriate in this case.
    In December 2006, the SOC discussed another of Dr. Liu’s
    appendicitis cases. The minutes contained little detail about
    the case itself, but the consensus was “that the management
    process was not adequate; deficient care.” Dr. Liu was sup-
    posed to be invited to the next meeting to offer her own
    views on the case, but she says that never occurred.
    In May 2007, Dr. Madura wrote to Dr. Donahue after at-
    tending a Mortality and Morbidity Conference. The confer-
    ence featured a case involving a 25-year-old male patient,
    J.E., who presented with twelve hours of right lower quad-
    rant pain, elevated white blood cell count, and a CT scan
    clearly showing acute appendicitis with a fecalith (a hard-
    ened mass of feces). Dr. Liu treated him with antibiotics and
    did not perform surgery. Seven to ten days later, the patient
    returned with an abscess and spent several days in the hos-
    pital. According to Dr. Madura, the audience unanimously
    agreed that J.E. should have received an operation when first
    admitted. He wrote that he was concerned that Dr. Liu was
    deviating from the standard of care for research purposes
    and that he was referring the J.E. case to the SOC.
    Before the SOC reviewed the case, Dr. Keen received a
    letter from resident physician Dr. Niki Christopoulos ex-
    pressing similar concerns about the management of J.E.’s
    case. Dr. Christopoulos wrote that J.E. had “begged” for an
    operation during his first admission, but that Dr. Liu had de-
    cided to manage his case non-operatively. Dr. Christopoulos
    believed Dr. Liu had “grossly mismanaged” the case.
    6                                                   No. 14-1775
    The SOC reviewed the J.E. case twice, on June 7 and July
    19, 2007. It recorded the following list of issues in its minutes
    for both meetings:
    1.     No protocol for antibiotic management
    2.     Patient is not advised of surgical vs. an-
    tibiotic management.
    3.     Misinterpretation of data
    4.     Inconsistency with resident & Attending
    reports.
    5.     Failure to treat non-improving condi-
    tion.
    The SOC decided to send a letter to the Division Chief re-
    garding “Dr. Liu’s ongoing mismanagement of appendicitis
    calling for corrective action/disciplinary action.” It also con-
    sidered recommending that Dr. Liu be sent to Peer Review,
    although it put the vote on hold until Dr. Liu could present
    her side of the case.
    On September 6, 2007, the SOC met to discuss several of
    Dr. Liu’s cases. The SOC had previously discussed two of
    them, I.G. and J.E. A third appendicitis case was erroneously
    attributed to Dr. Liu but actually belonged to a different
    physician. A fourth was unrelated to non-operative appendi-
    citis treatment but instead involved Dr. Liu’s failure to diag-
    nose a patient with cancer. The SOC agreed to generate a let-
    ter to Drs. Donahue and Keen expressing its view that Dr.
    Liu’s care and management of appendicitis were deficient
    and recommending a reprimand. Dr. Madura read the letter
    addressed to Dr. Donahue at an SOC meeting on October 4,
    2007.
    No. 14-1775                                                  7
    On October 16, 2007, Dr. Donahue wrote Dr. Liu regard-
    ing her approach to appendicitis. He proposed that in cases
    of acute appendicitis, she simply perform an appendectomy,
    and, if she believed operation was inappropriate, she consult
    with a colleague. Dr. Liu responded via letter dated Novem-
    ber 8, 2007. She defended non-operative appendicitis treat-
    ment as medically sound and wrote that she did not recall
    Dr. Donahue requesting that she operate on all cases of sus-
    pected acute appendicitis. She further wrote that she would
    have proceeded to surgery immediately if she had previous-
    ly understood his position. She professed to be willing to fol-
    low Dr. Donahue’s request that “all cases of suspected un-
    complicated acute appendicitis in our institution receive
    surgery,” at least pending the development of a formal pro-
    tocol for non-operative management.
    Four days later, Dr. Madura wrote a letter to Dr. Donahue
    about three additional cases purportedly involving Dr. Liu’s
    non-operative treatment of appendicitis. (Dr. Liu contends
    just one of the patients actually had appendicitis.) So Dr.
    Donahue wrote Dr. Liu again on November 16, citing wasted
    resources and increased morbidity risk when appendicitis
    was treated without surgery. He instructed her to develop a
    protocol for non-operative management of appendicitis if
    she believed it appropriate. He also warned her that failure
    to comply with division policies would lead to censure. At
    Dr. Keen’s request, Dr. Madura conducted a departmental
    quality control project comparing operative and non-
    operative appendicitis treatment in nearly 1,200 past appen-
    dicitis cases at Stroger. He concluded that acute appendicitis
    required urgent surgery. Dr. Liu was notified of this recom-
    mendation.
    8                                                No. 14-1775
    Nevertheless, on January 14, 2008, Dr. Madura discov-
    ered the case of F.G., another appendicitis patient whom Dr.
    Liu treated with antibiotics. He wrote to Drs. Donahue and
    Keen that he believed F.G.’s care was “inappropriately man-
    aged” and concluded: “It is only a matter of time before a
    tragic outcome results from this problem.” Dr. Donahue
    wrote to Dr. Liu on February 22:
    Following an earlier note in which I asked that
    you desist from your practice of experimental
    treatment of acute appendicitis[,] I was disap-
    pointed when your case of a similar nature was
    presented at morbidity conference, since the
    young patient had additional CAT scans and
    unnecessary hospital days. Also, the young
    man has his diseased appendix in situ, and is
    still at risk of complications in the future.
    In my note of October 16th, I directed you to
    consult with another surgeon if you felt com-
    pelled to consider antibiotic treatment in cases
    of acute appendicitis. You did not do so [in]
    this case, and possibly others. It is inappropri-
    ate to not follow directions from a Division
    Chief, and such deficiencies will have to be
    considered when reappointments are pending.
    Please comply with Division policies in the fu-
    ture.
    The SOC likewise disagreed with Dr. Liu’s treatment of F.G.
    On March 6, 2008, the SOC concluded there had been “inap-
    propriate management” and agreed to send a letter to Dr.
    No. 14-1775                                               9
    Liu “stating that the committee disagrees with her continued
    management of appendicitis.”
    4. Dr. Liu Continues Non-Operative Treatment
    Dr. Liu apparently did not change her approach to ap-
    pendicitis cases. On April 10, Dr. Donahue wrote her another
    letter reading in part:
    Following two earlier cases, I asked that you
    desist from your unorthodox treatment of
    acute appendicitis. I was disappointed to read
    your note that a patient with acute appendicitis
    was being treated with antibiotics for invalid
    reasons. When he failed to improve several
    days later, his appendix was removed. This pa-
    tient was placed at unnecessary risk because of
    your approach, which I categorize as “poor
    judgment” as well as failure to consult with
    another surgeon for your unorthodoxy. As the
    agenda showed in the Division meeting this
    morning, judgment as well as conformity to
    Division policies will be considered in the re-
    appointment process.
    On May 2, Dr. Liu responded. She said she “agreed to
    perform appendectomy for all cases of noncomplicated ap-
    pendicitis” but contended the case had involved complicated
    appendicitis, for which antibiotic treatment is “accepted
    management.” Three days later, Dr. Madura also wrote to
    Dr. Liu, informing her that her ongoing mismanagement of
    appendicitis cases and failure to comply with Dr. Donahue’s
    proposal would be presented to the Hospital Oversight
    Committee. He wrote that what concerned the Committee
    10                                                No. 14-1775
    most was Dr. Liu’s “insistence that you should not have to be
    subject to the plan of action outlined by Dr. Donahue be-
    cause you too are a senior attending.”
    The conflict soon came to a head. On July 19, a young pa-
    tient of Dr. Liu’s named Sandoval ended up in the surgical
    intensive care unit with serious complications. The Hospital
    Oversight Committee reviewed ICU admissions daily for
    quality assurance purposes. That same day, a member of
    Quality Assurance contacted Dr. Keen to tell him about
    Sandoval. Two committees met in special session to address
    the case: the Hospital Oversight Committee on July 21, and
    the SOC on July 24. The SOC determined that Sandoval’s
    ruptured appendicitis was apparent in a CT scan, but Dr. Liu
    did not operate until the next morning. Dr. Madura wrote to
    Drs. Keen and Donahue on July 24 informing them of the
    SOC’s unanimous conclusion that Dr. Liu’s treatment of ap-
    pendicitis fell below the standard of care and was jeopardiz-
    ing patients’ lives.
    Around this same time, Dr. Liu was taking action to
    combat what she felt was unfair disparagement of her prac-
    tices. On July 18, she received a memo written by Dr. Do-
    nahue months before, which opened: “Previously I have
    asked that you operate on all cases of suspected acute ap-
    pendicitis, since that is the way that American surgeons treat
    adult patients with acute appendicitis.” The memo repeated
    Dr. Donahue’s earlier proposal that Dr. Liu consult with a
    colleague if she felt operative treatment was inappropriate in
    a particular case of appendicitis. On July 22, Dr. Liu sent a
    memo defending her performance to Dr. Donahue, copying
    Dr. Keen and the new interim Medical Director, Dr. Maurice
    No. 14-1775                                                 11
    Lemon. She also met with Dr. Lemon to complain of discrim-
    ination on July 25.
    5. Suspension, Review, and Termination
    Soon after, Dr. Keen took decisive action of his own. On
    August 4, 2008, he suspended Dr. Liu’s surgical privileges
    and limited her cases to those of “low complexity.” He noti-
    fied Dr. Liu, Dr. Janice Benson, President of the Medical
    Staff, and Dr. Jay Mayefsky, Chair of the Peer Review Com-
    mittee. Dr. Liu was on leave at the time. Dr. Keen’s letter was
    re-sent to her late in August.
    Two weeks after she was suspended, Dr. Liu met with
    Drs. Langer and Lemon. They asked her to resign and forgo
    peer review, but she refused. On August 22, they proposed
    that in exchange for restoration of her privileges, Dr. Liu
    agree to a departmental policy regarding acute appendicitis
    treatment and acknowledge that she could have operated on
    Sandoval earlier. Dr. Liu agreed, but on August 26, Dr. Lang-
    er indicated that Dr. Keen and the SOC wanted “something a
    bit more all-encompassing than that.” He asked her to
    acknowledge that she could have operated earlier in several
    other cases. Dr. Liu did not reply. On August 29, Dr. Langer
    indicated that he could not restore Dr. Liu’s privileges.
    Stroger Hospital’s bylaws require the standing Peer Re-
    view Committee to review summary suspensions. Over the
    next few weeks, members interviewed Drs. Keen, Liu, and
    others. The Committee also reviewed medical records and
    reports from the Hospital Oversight Committee and Drs. Liu
    and Keen, and received correspondence from other physi-
    cians. Drs. Keen, Madura, and Donahue did not control the
    Peer Review Committee and in fact were not on the Commit-
    12                                                 No. 14-1775
    tee at all. Dr. Liu suggests that the proceedings were none-
    theless unfair because she had insufficient notice of the con-
    duct she was to rebut and was forced to review cases that
    were several years old.
    Though the timing is unclear, during the review process,
    another appendicitis case involving Dr. Liu came to Dr.
    Keen’s attention. Sometime in October 2007, Dr. Liu had
    been an attending physician for a patient named Diane
    Bucki. Dr. Liu was part of the decision to treat Bucki’s ap-
    pendicitis with antibiotics. Bucki’s appendix eventually per-
    forated, and she received emergency surgery at a different
    hospital. She sued the County, Dr. Liu, and a former intern
    for malpractice. The case eventually settled for $190,000,
    though Dr. Liu was dismissed from the lawsuit before the
    execution of the settlement. The County told Dr. Keen of the
    case around the time of the settlement. He added that case to
    the mix.
    On September 25, the Committee issued its unanimous
    report. As “Complaints,” the report listed Dr. Liu’s non-
    operative management of appendicitis despite repeated in-
    structions to the contrary and her “large number of compli-
    cations on more complex cases,” although the Committee
    also “felt that she is bright and a competent surgeon.” The
    Committee found:
    1. The process of oversight in the Department
    of Surgery is not without the potential for
    bias, and this may lead a department mem-
    ber to feel that she/he is the subject of unfair
    scrutiny. This can cause animosity, and elic-
    it stubbornness and reluctance to change.
    No. 14-1775                                                13
    2. That being said, there is sufficient evidence
    to support the complaints against Dr. Liu.
    She is not managing appendicitis as per the
    accepted standard of care at Stroger Hospi-
    tal, and some of her patients have therefore
    experienced complications. She has refused
    to follow the directives of her department
    and division chiefs. She has exhibited poor
    judgment in the management of several
    other types of surgical cases. These have led
    to [a] number of complications.
    3. The Committee is especially concerned
    with Dr. Liu’s lack of insight into her prob-
    lems.
    The Committee recommended that the suspension continue
    until Dr. Liu completed counseling, “with the goals of gain-
    ing insight into her problems, accepting responsibility for
    her actions, and learning how to change in response to feed-
    back.” The Committee recommended restoring her privileg-
    es once she completed counseling.
    The Executive Medical Staff, or EMS, is composed of
    about 40 individuals and is responsible for independently
    reviewing peer review reports. No single person controls the
    EMS. Pursuant to the bylaws, the EMS met and discussed
    Dr. Liu’s summary suspension three times in October.
    Though the EMS voted against terminating Dr. Liu on Octo-
    ber 14, ultimately, on October 22, all the EMS members pre-
    sent (save one who abstained) voted to keep the suspension
    in full force and to reduce Dr. Liu’s clinical privileges to a
    limited number of general surgery cases.
    14                                                No. 14-1775
    At Stroger, every physician must reapply and be reap-
    pointed to the staff every two years. In Dr. Liu’s case, the
    Credentials Committee recommended denying reappoint-
    ment. Drs. Madura and Donahue were recused from the
    Committee but spoke about Dr. Liu’s clinical deficiencies. Dr.
    Keen was never part of the Committee; he, too, spoke about
    Dr. Liu. Dr. Mayefsky summarized the Peer Review Commit-
    tee’s findings on the summary suspension. During her own
    appearance before the Credentials Committee, Dr. Liu de-
    fended her conduct by stating that she was “entitled to treat
    patients in the way she sees best.”
    The EMS adopted the Credentials Committee’s recom-
    mendation against reappointment by a vote of eighteen to
    one, with two abstentions. Dr. Liu appealed both decisions.
    A three-person committee selected by medical staff president
    Dr. Benson conducted an evidentiary hearing in the fall of
    2009. A successful appeal required the physician to show by
    clear and convincing evidence that the EMS decision was ar-
    bitrary, capricious, or unreasonable—a task presumably
    made difficult by the fact that the EMS did not keep records
    of its decision-making process. After nine sessions, including
    fifteen witnesses and dozens of exhibits, the leader of the
    committee, Dr. David Levine, drafted unanimous recom-
    mendations finding that Dr. Liu had not proven her case and
    upholding both the summary suspension and the denial of
    reappointment. Drs. Keen and Madura had no control over
    the hearing committee. By the time the hearing committee
    issued its recommendation, Dr. Donahue had passed away.
    Dr. Liu nevertheless attacks this process as unfair, primarily
    because the number of cases asserted against her increased
    throughout.
    No. 14-1775                                                 15
    This was not quite the end of the process Dr. Liu re-
    ceived, though. Pursuant to the bylaws, on January 12, 2010,
    EMS adopted the hearing committee’s recommendations by
    a vote of eighteen to seven, with three abstentions. The Joint
    Conference Committee upheld that determination by a vote
    of six to three in March. The Health System Board of Direc-
    tors upheld the determination again in April.
    Finally, also in January 2010, Dr. Liu was terminated for
    her behavior during the suspension and reappointment pro-
    ceedings. She accessed patient records to try to prove that
    her performance was better than that of her colleagues. Dr.
    Keen brought disciplinary charges against her. Following a
    hearing before an independent hearing officer, she was dis-
    charged, ostensibly for violating the Health Insurance Porta-
    bility and Accountability Act, or HIPAA, the Cook County
    Health and Hospital System Privacy Policy, and Stroger’s
    own HIPAA policy.
    B. Procedural History
    Dr. Liu brought suit alleging race, sex, and national
    origin discrimination, as well as retaliation and harassment.
    She asserted a number of other claims as well, but those are
    not at issue in this appeal. Defendants moved for summary
    judgment, and the district court granted that motion in its
    entirety. With respect to the Title VII discrimination and re-
    taliation claims, the court assumed without deciding that Dr.
    Liu could establish a prima facie case of discrimination. It
    then identified the defendants’ stated non-discriminatory
    reason for disciplining Dr. Liu—the failure to treat appendi-
    citis with surgery—and held that Dr. Liu had failed to raise a
    genuine dispute of fact as to whether that reason was a pre-
    text for discrimination based on race, sex, or national origin.
    16                                                    No. 14-1775
    The court also rejected the harassment claims because the
    letters and reprimands Dr. Liu received were neither objec-
    tively offensive nor related to her sex, race, or national
    origin. Finally, on her retaliation claims, the court held that
    Dr. Liu had produced insufficient evidence to show causa-
    tion under the direct method and that she could not prevail
    under the indirect method due to a lack of evidence of pre-
    text. Dr. Liu appealed with respect to these claims. We have
    jurisdiction pursuant to 
    28 U.S.C. § 1291
    .
    II. Analysis
    We review de novo the district court’s decision to grant
    summary judgment. Ripberger v. Corizon, Inc., 
    773 F.3d 871
    ,
    876 (7th Cir. 2014). In discrimination and retaliation cases
    under Title VII, a plaintiff may defeat summary judgment
    via either the direct or indirect method of proof, 
    id.
     (discrim-
    ination); Harper v. C.R. England, Inc., 
    687 F.3d 297
    , 306 (7th
    Cir. 2012) (retaliation), though it is a mistake to adhere too
    rigidly to those methods. The proper question under either
    method is simply whether a reasonable trier of fact could in-
    fer retaliation or discrimination. See Castro v. DeVry Universi-
    ty, Inc., 
    786 F.3d 559
    , 564 (7th Cir. 2015), citing, among other
    cases, Bass v. Joliet Public School Dist. No. 86, 
    746 F.3d 835
    , 840
    (7th Cir. 2014), and Coleman v. Donahoe, 
    667 F.3d 835
    , 863 (7th
    Cir. 2012) (Wood, J., concurring) (arguing that “the time has
    come to collapse all these tests into one”). The substantive
    standards and methods of proof that apply to Title VII race
    discrimination and retaliation claims also apply to Dr. Liu’s
    claims under 
    42 U.S.C. § 1981
    . Smith v. Bray, 
    681 F.3d 888
    , 896
    (7th Cir. 2012). We follow Dr. Liu’s lead in considering her
    claims for discrimination and retaliation together before
    turning to her hostile work environment claim.
    No. 14-1775                                                   17
    A. Discrimination and Retaliation
    The district court analyzed Dr. Liu’s national origin and
    sex discrimination claims under both the direct and indirect
    methods of proof, her race-based discrimination claims un-
    der the indirect method only, and her retaliation claims un-
    der the direct and indirect methods. On appeal, Dr. Liu ar-
    gues only that her claims should have survived summary
    judgment under the indirect method of proof. Under the in-
    direct method, a plaintiff must establish a prima facie case of
    discrimination or retaliation, after which the burden shifts to
    the employer to articulate a non-discriminatory reason for its
    action. Then, the burden shifts back to the employee to show
    that reason is pretextual. Collins v. American Red Cross, 
    715 F.3d 994
    , 999–1000 (7th Cir. 2013) (discrimination); Harper,
    687 F.3d at 309 (retaliation). Of course, “when all is said and
    done, the fundamental question at the summary judgment
    stage is simply whether a reasonable jury could find prohib-
    ited discrimination.” Bass, 746 F.3d at 840.
    Like the district court and the parties, we focus our anal-
    ysis on the question of pretext. The burden is on the plaintiff
    to offer evidence that her employer’s stated non-
    discriminatory reason was a lie intended to mask unlawful
    discrimination. E.g., Harden v. Marion County Sheriff’s Dep’t,
    
    799 F.3d 857
    , 864 (7th Cir. 2015); Widmar v. Sun Chemical
    Corp., 
    772 F.3d 457
    , 465 (7th Cir. 2014); Naik v. Boehringer
    Ingelheim Pharmaceuticals, Inc., 
    627 F.3d 596
    , 601 (7th Cir.
    2010). “The question is not whether the employer’s stated
    reason was inaccurate or unfair, but whether the employer
    honestly believed the reason it has offered” for the adverse
    action. O’Leary v. Accretive Health, Inc., 
    657 F.3d 625
    , 635 (7th
    Cir. 2011).
    18                                                   No. 14-1775
    Even if an employer’s decision is mistaken, there is no
    pretext so long as the decision-maker honestly believed the
    non-discriminatory reason. Hague v. Thompson Distribution
    Co., 
    436 F.3d 816
    , 823 (7th Cir. 2006), quoting Ballance v. City
    of Springfield, 
    424 F.3d 614
    , 617 (7th Cir. 2005); see also Yindee
    v. CCH Inc., 
    458 F.3d 599
    , 602 (7th Cir. 2006) (“It is not
    enough to demonstrate that the employer was mistaken, in-
    considerate, short-fused, or otherwise benighted; none of
    those possibilities violates federal law. Poor personnel man-
    agement receives its comeuppance in the market rather than
    the courts.”) (citations omitted). A plaintiff may show a gen-
    uine dispute of fact on pretext by identifying “such weak-
    nesses, implausibilities, inconsistencies, or contradictions” in
    a stated reason that a reasonable trier of fact could find it
    “unworthy of credence.” Harper, 687 F.3d at 311, quoting
    Boumehdi v. Plastag Holdings, LLC, 
    489 F.3d 781
    , 792 (7th Cir.
    2007).
    To justify the actions taken against Dr. Liu, defendants re-
    ly on her failure to operate immediately in appendicitis cas-
    es. Over several years, Dr. Liu received frequent instructions
    to operate when patients presented with appendicitis. The
    undisputed facts show that she repeatedly refused to do so.
    After several incidents in which patients suffered “complica-
    tions,” a euphemism here for grave dangers to life and
    health, her privileges were suspended and she was denied
    reappointment to the hospital staff. These determinations
    were affirmed no fewer than six times by different medical
    committees, passing through the Peer Review Commit-
    tee/Credentials Committee, the EMS, the three-person hear-
    ing committee, the EMS a second time, the Joint Conference
    Committee, and the Health System Board of Directors.
    No. 14-1775                                                 19
    On this record, we cannot agree with Dr. Liu that the de-
    fendants’ stated non-discriminatory reason for the actions
    they took was “highly questionable.” Dr. Liu points to noth-
    ing in the record supporting her argument that defendants
    “created” a false “trail of alleged wrongdoing.” In fact, she
    continues to defend on the merits her many decisions not to
    operate on patients with appendicitis. And her complaints
    about the fairness of the process she received and defend-
    ants’ tendency to introduce additional evidence do not show
    that defendants secretly “directed” all the stages of inde-
    pendent review or served as “the prosecutors, the witnesses,
    and the jury.” While Drs. Keen, Madura, and Donahue were
    certainly involved in presenting the case against her, she has
    presented no evidence that they controlled these bodies’ de-
    cision-making.
    Dr. Liu argues that defendants were medically off-base in
    condemning the non-operative approach to appendicitis. She
    asserts that the use of antibiotics to treat appendicitis has
    support in the medical literature and that it was appropriate
    for the patients she treated that way. For purposes of sum-
    mary judgment, we must allow for the possibility that de-
    fendants were unduly narrow-minded on the medical issues.
    But this would not make their reasoning any less believable,
    particularly given the complications that some patients like
    J.E., Diane Bucki, and Sandoval suffered when Dr. Liu de-
    layed operating or chose not to operate at all.
    Dr. Liu also points to purported weaknesses in defend-
    ants’ reasoning, which, as we have said, can permit an infer-
    ence of pretext. Harper, 687 F.3d at 311. She first attacks the
    punishment imposed upon her as inconsistent with her sup-
    posed transgressions. If her failure to perform surgery truly
    20                                                 No. 14-1775
    drove defendants’ decisions, she argues, the proper course of
    action would be to encourage surgery by instituting a proc-
    torship or ordering her to operate on appendicitis patients.
    But the record demonstrates that defendants attempted to do
    exactly that for months. They directed Dr. Liu to operate on
    appendicitis patients or to consult with a colleague if she be-
    lieved operating was inappropriate in a given case. She re-
    peatedly refused to comply. The fact that defendants eventu-
    ally decided to restrict Dr. Liu’s privileges altogether does
    not, in light of her history, undermine the credibility of de-
    fendants’ concerns over her repeated refusal to operate on
    appendicitis patients as directed. The undisputed facts show
    her history of non-compliance with earlier efforts to encour-
    age her to operate, supported by her statement to the Cre-
    dentials Committee that she was “entitled” to treat patients
    as she saw fit.
    Dr. Liu also argues that a trier of fact could infer pretext
    because she was punished for treating appendicitis non-
    operatively when defendants themselves admit that other
    general surgeons also use non-operative treatment at least
    two to three percent of the time without repercussions. But
    Dr. Liu has presented no evidence that any other surgeon (1)
    managed appendicitis non-operatively after explicit instruc-
    tions not to do so; or (2) caused, or appeared to cause, the
    complications that Dr. Liu’s treatments appeared to cause.
    Put another way, Dr. Liu oversimplifies the conduct for
    which she was punished. After she refused to comply with
    repeated instructions to operate on appendicitis patients and
    her patients experienced several near-tragedies, Stroger ter-
    minated her privileges and denied her reappointment. She
    has pointed to no other surgeon who engaged in a compar-
    able course of conduct.
    No. 14-1775                                                  21
    Next, Dr. Liu argues that the other reprimands she re-
    ceived show pretext because those clashes were not related
    to her treatment of appendicitis. But Dr. Liu does not explain
    how these earlier admonitions, even if we presume they
    were unfair, call into question the legitimacy of defendants’
    concern about her repeated non-operative treatment of ap-
    pendicitis. To the extent her theory is that these non-
    appendicitis reprimands were part of a broad conspiracy to
    discriminate, the theory is not a reasonable inference on this
    record. The evidence of unlawful animus is minimal, and
    defendants’ non-discriminatory justification is well-
    supported. Without supporting evidence, Dr. Liu’s attempt
    to characterize the appendicitis dispute as one more volley
    in a discriminatory “assault on her professional competence”
    is only speculation. See Matthews v. Waukesha County, 
    759 F.3d 821
    , 824 (7th Cir. 2014) (non-moving party is not entitled
    to the benefit of “inferences that are supported only by spec-
    ulation or conjecture”).
    Finally, Dr. Liu argues that the offer of what she calls the
    “backroom deal,” in which she was offered the chance to
    avoid peer review if she agreed to abide by a departmental
    policy for treatment of appendicitis and to admit her errors
    in a number of cases, suggests pretext. In her view, the offer
    shows that no one truly believed she was a danger to pa-
    tients because she could have kept her privileges and her
    appointment if she had “submitted.” Again, that inference is
    not reasonable on this record, which is replete with undis-
    puted evidence that defendants and the SOC believed Dr.
    Liu’s approach was dangerous—to say nothing of the com-
    plications that actually occurred in some cases.
    22                                                 No. 14-1775
    The same is true of what Dr. Liu calls the HIPAA “ruse.”
    She says that she was well within her rights to access patient
    information to prove that her colleagues erred more fre-
    quently than she did, and that defendants’ HIPAA expert
    was unaware of any cases in which a physician was termi-
    nated for violating HIPAA. But the pretext inquiry turns on
    honesty, not correctness, and even if we assume a less severe
    punishment might have been more appropriate, that fact
    does not, without more, provide evidence of pretext. See Za-
    yas v. Rockford Memorial Hospital, 
    740 F.3d 1154
    , 1158–59 (7th
    Cir. 2014) (“Thus, it is irrelevant if Zayas’ emails were not
    egregious enough to justify her termination, as long as
    Griesman believed they were. … Therefore, we have no
    trouble finding that Zayas’ emails were not a pretextual basis
    for her termination.”).
    As a matter of medical science, we must assume for pur-
    poses of summary judgment that Dr. Liu might ultimately be
    correct that her approach to appendicitis treatment will
    prove to be sound. But as we have said many times, we do
    not sit as a super-personnel department, examining the wis-
    dom of employers’ business decisions. E.g., Widmar v. Sun
    Chemical Corp., 
    772 F.3d 457
    , 464 (7th Cir. 2014); Traylor v.
    Brown, 
    295 F.3d 783
    , 790 (7th Cir. 2002); see also Forrester v.
    Rauland-Borg Corp., 
    453 F.3d 416
    , 418 (7th Cir. 2006) (in ana-
    lyzing pretext, “the question is never whether the employer
    was mistaken, cruel, unethical, out of his head, or downright
    irrational in taking the action for the stated reason, but simp-
    ly whether the stated reason was his reason: not a good rea-
    son, but the true reason”) (emphasis in original). By the same
    token, we certainly do not sit as a super-medical review
    committee. Nothing in the record before us suggests that de-
    fendants’ concern with Dr. Liu’s repeated refusal to operate
    No. 14-1775                                                  23
    on appendicitis and the repeated dangerous “complications”
    was false. The district court correctly granted summary
    judgment for defendants on these claims for race, sex, and
    national origin discrimination and for retaliation.
    B. Hostile Work Environment
    To survive summary judgment on her claims for hostile
    work environment, Dr. Liu must have presented sufficient
    evidence to present a material issue of fact on four elements:
    (1) her work environment must have been subjectively and
    objectively offensive; (2) her race, sex, and/or national origin
    must have been the cause of the harassment; (3) the conduct
    must have been severe or pervasive; and (4) there must be a
    basis for employer liability, meaning either that a supervisor
    participated in the harassment or that Stroger Hospital was
    negligent in discovering or remedying co-worker harass-
    ment. Montgomery v. American Airlines, Inc., 
    626 F.3d 382
    , 390
    (7th Cir. 2010).
    Dr. Liu contends that the reprimands she received, in-
    cluding those unrelated to her treatment of appendicitis,
    constituted harassment sufficiently offensive, pervasive, and
    severe to overcome summary judgment. We need not decide
    this question, however, because no evidence permits a rea-
    sonable inference that those reprimands were related to Dr.
    Liu’s membership in any protected class. Dr. Liu proffers on-
    ly Dr. Donahue’s statements to prove a connection: (1) he
    called her a “good girl” in the year 2000; (2) he once asked
    Dr. Liu why she needed a raise when her husband worked;
    (3) he asked a different female doctor, outside of Dr. Liu’s
    presence, why all female doctors have to be “bitches”; and
    (4) he sent the May 2, 2008 memo stating that “American
    surgeons” treat appendicitis with surgery. Dr. Liu has of-
    24                                               No. 14-1775
    fered no evidence that the first three remarks, none of which
    came from Drs. Keen or Madura, are connected in any way
    to the memoranda and reprimands she received much later.
    Dr. Donahue’s “American doctors” remark did appear in one
    of the letters that Dr. Liu condemns as harassment, but that
    single ambiguous remark, bolstered by nothing more than
    Dr. Liu’s own speculation, cannot support her theory that
    national-origin bias motivated the defendants’ behavior in
    communicating their disagreement with the quality of care
    she provided to patients.
    The judgment of the district court is AFFIRMED.