Just a quick back of the envelope calculation, so it may be slightly wrong. When Diarra was in the game in the first half, he was +6. Vogt in the first half was +1. I know +/- isn't the greatest measure, but it's a pretty common theme with Diarra. Even when he looks bad, he still ends up with a positive +/- because of his impact of defense and on the boards (with the exception of the UConn game, where he was just straight up terrible). He still has a long way to go obviously, but he generally isn't the liability that many make him out to be.