Jul 18, 2013 — By Â鶹´«Ã½ News Services — Tim Pett, formerly the director of the Center for Entrepreneurship at Â鶹´«Ã½, has resigned from the university effective Aug. 31. Lou Heldman, an experienced business and campus leader, has been acting director of the Â鶹´«Ã½ Center for Entrepreneurship since June 2, and will continue serving in that role.