Cook has to show increased effort on the defensive end of the court. Trying to block every shot and getting in foul trouble isn't the way to do that. Keeping his man off the boards and not getting beat off the dribble is a good start but being the vocal defensive leader and leading by example with his defensive intensity will go a long ways. We have seen the type of player he can be offensively. A little more consistency with his jump shot would also help better round out his game.