Defending in college is a lot different than in the NBA. Good defense in college doesn't always translate (It was thought Lillard would be an above average defender, at least).
First time keying in on him vs. Michigan State and I'm going to back off a little (more like a lot) ofwhat I said earlier. Might have been his worst game of the year but Nick Ward made him look like trash. He had a couple really nice moves in the post, but if he can't shoot there is no reason to not guard him with your center and he has no chance to do what he's doing against that kind of size, strength and athleticism.
Cliff Alexander is like 10x better than Swanigan. I'm not impressed, he just looked like the biggest dude on the court. The shooters happened to make the shots when he passed out of the post, he didn't have any one on one moves even when the opponent was smaller.