The man doesn't excel in any one facet of the game to be called a great player. Dude is simply a PnR scorer and a decent shooter. It's been shown that if you switch on him a mobile big man on the PnR sets he is going to struggle putting up points on the score board since he isn't really a speed merchant. Just check how Bosh/Ibaka fared in their recent match-ups. If a team has the personal, they can make him look ordinary since he doesn't have athleticism to negate it. Usually, teams try to blitz him on the PnR but he is a willing passer and has decent players around him to make them pay.