delivered the opinion of the Court, in which all Justices join.
Once again this Court faces the question of whether good cаuse under Rule 215(5) exists to allow the testimony of expert witnesses who were not previously designated by the party calling them. Because the determination of good cause is within the discretion of the trial judge, we review this case under an abuse of discretion standard and hold that no such abuse occurred here. For that reason, we reverse the judgment оf the court of appeals and affirm the trial court judgment.
This case arose when a forklift driven by John Bullock overturnеd, fatally pinning him to the ground. Bullock’s survivors brought this action against Aluminum Company of America (“Alcoa”) and Eaton Corporаtion, alleging that Bullock’s death resulted from gross negligence in failing to provide seat-belts on the forklift and failing to adеquately warn and train Alcoa employees to handle a forklift accident. Eaton Corporation settled with thе Bullocks before trial.
In discovery responses, the Bullocks designated a human factors expert, Dr. Lila Laux, whom they eventually called to testify at trial. In her deposition, Laux testified that she did not believe Alcoa to be consciоusly indifferent to its employees’ safety. At trial, however, Laux stated that she had made a post-deposition review of Alcoa’s training materials and, as a result, concluded that Alcoa was grossly negligent.
Faced with this material and unanticipated change in the expert’s opinion, Alcoa sought to cross-examine Laux by referencing the opiniоns of experts upon whom Laux had relied and who had previously been designated by the Bullocks. The trial court permitted Alcoa to do so over the Bullocks’ objections. The Bullocks waived those objections on appeаl.
Later, Alcoa requested the trial court to allow it to introduce in its case-in-chief the testimony of Dr. Kirby and Dr. Entwisle, two оther experts designated prior to trial by the Bullocks as well as the co-defendant, Eaton. Both experts had been deposed, giving all parties the opportunity to adequately examine and develop the experts’ opinion testimony. The trial court held that good cause was shown and admitted the experts’ testimony. The parties then had six days, including a weekend, to prepare before the experts were allowed to testify. On appeal, the сourt held that the admission of the expert testimony was error and remanded for a new trial.
A party is obligated to designаte any expert it expects to call and to disclose the substance of his testimony as soon as practical, but not less than thirty days before trial. Tex.R.Civ.P. 166b(6)(b);
Sharp v. Broadway National Bank,
The Bullocks contend that Alcoa’s failure to designate the experts should foreclose introduction of their tеstimony at trial, ignoring the fact that the experts became necessary only when Alcoa was faced with the unanticipated change in the testimony proffered by the Bullocks’ expert, Laux. Rule 166b(2)(e) provides for discovery of not only the identity, but also the expected substance of the testimony of expert witnesses who will testify at trial.
Gee v. Liberty Mut. Fire Ins. Co.,
A party’s failure to supplement discovery to disclose a material change in an expert’s opinion may provide good cause for an adverse party’s failure to designate rebuttal experts who become necessary only to counter the unanticipated testimony.
See AmSav Group, Inc. v. American Sav. & Loan Ass’n,
In
Alvarado v. Farah Mfg. Co.,
Although the trial court considered the fact that the experts had been designated by both the Bullоcks and Eaton prior to trial, Alcoa’s showing of good cause did not rest on that fact alone. Accordingly, we do not pass on the question whether sufficient good cause can exist based solely on an opposing party’s designatiоn. We hold, based on all of the facts before us, that the trial court acted within its discretion when finding that Alcoa met its burden of showing good cause for allowing the experts’ testimony in rebuttal of a material and unanticipated change in testimony. We reverse the judgment of the court of appeals and affirm the trial court’s judgment in favor of Alcoa.
