I think Ryan's defense consistently gets overly trashed on this board. He's not Dereck Lively, and he never will be. But he doesn't get blown by as much as people here seem to think, either, and his positioning is close to perfect, so that even if he is beaten off the dribble, the dribbler almost always ends up heading into the (planned) defensive help. He also makes the other defenders on the floor better. He is an unspectacular defender in every way. But, in my view, and as verified by
Sports-Reference.com he's not a "bad" defender, like everyone here seems to think. His 1.2 Defensive Win Shares and 3.3 Defensive Box Plus/Minus (both career highs) show that he is contributing to the team, even only considering the defensive end.
We could do a lot worse defensively than we do with Ryan Young.