Can someone show me clips of Olynyk's great team defense? Whenever I watch, it seems like he fails to contain penetration on the pick and roll and he is very indecisive when he's coming off the weakside. IMO to be at least an average interior defender, you have to be able to take one thing away consistently when the other team penetrates. You either stop the ball handler or stop a roller/cutter/post player from getting open. IMO he's caught in between or a second late most of the time. If you're Hassan Whiteside you can get away with this, but not Olynyk.
I don't think that what the team defense looks like when he's on the floor is "all that matters." Who else is on the floor with him?