Yes, bad defender, off the ball. His on ball defense is fine when he bothers to try, and he does a pretty good job in the post as well when he gets switched on bigs, but off-ball he is always losing track of his man and guys are always easily getting behind him. Whatever it is, it's a far cry from this idea that some people keep trying to perpetuate that he is some sort of two-way star. I concede that calling him a bad defender overall is maybe a tad too far, where I was coming from was more that he is another a hole in the defense, rather than some solid pillar that is surrounded by holes in the fence. The worst part is that like you said, it's not as if he doesn't have the quickness or skills to be a good defender.