Olivier had no business playing center. He didn't want to do that and Cal forced him. He was tall, but he was more comfortable playing the 4. Skal, totally right. Marcus Lee was a great shot blocker once he saw minutes. I don't care about his rebounds, he could block. Nick Richard as a sophomore was a presence in the paint.
Oscar doesn't really defend well. He shoots and rebounds well, but he can't defend. He doesn't have the height for it. He is like a gentle and cool Dennis Rodman (I know Rodman definitely was a physical player and would get in people's head -- I just mean his role on the court of a rebounder first).
Anyway, if Oscar returns and isn't our center, I'm more than okay with that because we get scoring, but maybe the defense comes from somewhere else. Ralph knows better than me, but this is my perspective.