Defensively, KO was very competitive. Not too many NBA coaches are going to let the opposing big pound the ball on the floor 5-6 times and back down their center without some kind of defensive help, like Nicholson was doing today.
I thought Olynyk had a decent base, moved his feet well, and tried to body the post player. he was able to pick up one offensive foul when chest bumped. I don't see why he can't be a decent post defender, despite the short arms. he has a good frame, good footwork, and seems to be game for the physical play. He's never going to be a KG type, but all he needs to be is acceptable on defense, with his size and offensive skills, to be a decent NBA player at least.