we don't think so.
you can't improve in a skill unless you practice it in-game, and (for instance) a center does not dribble that much, nor does a point guard get to defend in the lane often enough.
Really? Since he doesn't practice passing in-game (and therefore I can't train him in passing), can you explain to me why my PF averages 4.1 assists/game?
And my 3rd string PG can't be trained any further in shot blocking, yet he averages 1.3 blocks per game.
I'm just having problems with your theory, Dom.