I'm not saying guard 5 positions, NBA players aren't capable of that, well perhaps a few. But his one on one post defense certainly isn't good, he's shown flashes of being good (had a nice block last night while standing up an IU player), but got bullied a few times as well. Again, he's shown flashes of being a good defensive rebounder, but he's been punked a lot as well. He consistently gets beat on the perimeter from stagnant positions.
All of that screams inconsistency, which is the exact opposite of good. I think you're referring to the P word.........potential, which I agree with. But he's not good.............yet