I disagree. He's played extremely solid defense. Yeah he has good defensive instincts, and overall has been pretty good lately but he still makes mistakes occasionally, which I think a lot of players do when they a) transition from europe to the nba and b) learn thibs' defense. Also the only thing I worry about with Niko playing the 3 is having to defend smaller and more athletic players that can blow by him. Right, his D is gonna suffer when he plays the 3, but it's been good enough to keep him from being a liability there.