Heisman Trophy winner worried whether his future with the quarterback-needy Bills will last past this weekend. "It's disappointing. You have an opportunity, and you go out there and you don't play as well as you want to," Leinart said after struggling in a 35-13 preseason-ending loss to the Detroit Lions on Thursday night. "I was thankful to be here, and we'll see what happens. Obviously, after that performance it can't be anything good I would think. But we'll see."