When you're 6'9", 20 pounds isn't much at all. Every college hoops big should be able to put on 20 pounds in 2 years with the trainers and nutritionists they have available if they put in the time and dedication.
If only it were that easy.
When I turn on my TV and watch CBB and NBA, I always wonder why I see some string beans out there.. Now I know that it's not genetics, but just bad trainers, nutritionists, and poor work ethic.
Forget the laws of science, let's just add 20 lbs of muscle mass to everybody!
And can we just put this to rest? McKay's body size and muscle mass are not the problem. Nobody was saying this last year when he was Big 12 DPOY. The problem is between the ears, not his lack of muscle.