He is too in love with his spin moves, usually left to right, without taking into account the location of the defenders. I have seen him multiple times spin into a double team, rather than away from it.
He needs to simplify his drives to the hoop. His first step is so quick, he just needs to look at what is given to him by the defense, and take it. Brad's a great coach, and is probably drilling this into him as we speak. Old habits die hard.