The other part of the equation, which I hate to mention, is that in his last couple starts, Kemba shot 6-26 in a winnable game and then shot 2-9. And his turnovers started going up - which is one thing he had been doing consistently well lately.
Small sample size, but he could be at the point where the NBA grind is getting to him and playing a solid 40 minutes is just not in the tank. I look forward to seeing how he comes out the chute next year with a clean slate, but the rest of this year is probably going to be a wide variance from game to game.