I believe Perkins is grasping at straws to find a reason why the Celtics can't beat the top teams anymore. The Celtics lost to the Nets after getting the life sucked out of them against the Cavs. No crazy, down on your hands, intense KG, no defense, no championship, not worth the effort of the players. Now maybe KG is saving himself for the playoffs so he doesn't get injured too early again like last year. I hope anyways. lol.