I think he can play thin, and will. Especially a lot of noncon games before McKay is good to go. If we played slow paced great defense it would be a little different, but running the floor and shooting can get away with "smaller" guys.
But yes I'm very excited to see what he does down the road after he bulks up. Hope he can pack on a lot of good weight fast.
I also think they didn't freak out about him being overweight because the first two years he was going to be slamming with huge guys down on the block.
They were willing to accept it because he usually took advantage of them on the other end.