Good point, Kim. I'm assuming that you're assuming that Mike James is not this type of player (that is, the veteran player capable of teaching Marcus by repeatedly burning him in practice)...
yet don't you think he gets by (that is, if you think he is getting by--I do, btw) on his veteran savvy as opposed to any sort of physical attributes?
As such, it seems a safe assumption that when James is beating Banks in practice (he must be, since James is starting over Banks),
he is already providing the "learning by failure" model you propose below.