Clemson athletic director Terry Don Phillips will retire at or before the end of his contract, which runs until July 2013, the school announced on Thursday. Clemson president James F. Barker said a national search for a replacement will be launched this fall, and the goal is to have a successor named by the time Phillips' contract ends so there is no need to appoint an interim AD. Phillips, who has spent the past 10 years in Death Valley, had previously briefed Barker and the board of trustees about his plans. He and Barker will address the media at 2 p.m. ET on Thursday.