(May 7, 2018, 9:27 AM EDT) -- GREENSBORO, N.C. — Less than a month after certification of a class of current and former participants in Duke University’s retirement plan suing over allegedly excessive fees and the inclusion of imprudent investment funds and less than two weeks after filing a motion for a jury trial, the plaintiffs moved on May 3 to file a third amended complaint (David Clark, et al. v. Duke University, et al., No. 16-1044, M.D. N.C.)....