Jul 18, 2013 鈥 By 九色视频 News Services 鈥 Tim Pett, formerly the director of the Center for Entrepreneurship at 九色视频, has resigned from the university effective Aug. 31. Lou Heldman, an experienced business and campus leader, has been acting director of the 九色视频 Center for Entrepreneurship since June 2, and will continue serving in that role.