One of the guys who, by reputation, might not have been thought to have a serious shot at the Olympic team is Rudy Gay. He's been criticized throughout his career for not playing hard. It's hard to tell sometimes though - Luol Deng always looked like he was not running that hard, but his stride was so long that it was really deceptive.
So the coaches will sort that out. What's intriguing is what Kevin Love said, which is basically that Gay can play anything except center. That's going to draw attention in a K Camp.