After dominating defending NBA champion Golden State from start to finish two days earlier, the Thunder wasted a big lead in a 99-98 loss to the Detroit Pistons on Friday night. Oklahoma City had a 10-point lead at the half and was up 15 midway through the third quarter before the Pistons stormed back, led by center Andre Drummond and bench players Ish Smith and Langston Galloway. ''In the first half, (Drummond) was not good.