12, 1986, and scheduled the final pretrial order to be due on December 3, 1986.


7
Frustrated by Parker's lack of cooperation and diligence in pursuing the litigation, National Seating brought a motion to bar plaintiff's expert testimony because of his failure to comply with the court's discovery orders.  Appearing before the district court, Parker's counsel finally provided signed answers for the first set of interrogatories, but objected to the second set and failed to respond to the set of interrogatories directed to experts.  He also refused, or was unable, to disclose the names of expert witnesses he intended to call to support any of the allegations of his complaint.  At the hearing, Parker's attorney also admitted to the court that he had not yet filed therefile his original action, the court's December 5, 1987 order barring expert testimony would remain in effect in any refiled action.2   Over Parker's objection, the district court agreed and amended the order on February 17, 1987.  Parker took no steps at that time to challenge the district court's order.


11
Nearly a year later, Parker refiled his original action in federal district court--this time promptly serving both Freightliner and National Seating.  The parties again commenced discovery, with fact discovery to have been closed on January 2, 1989, and experts to have been identified by January 17, 1989.  But, the plaintiff again did not disclose the names of his expert witnesses by the court-imposed deadline.  Both defendants then filed motions for summary judgment on March