Honestly it sucks for the kid who is 15 and has a real good stick great iq but hasn't hit that maturity physically. My son is one of those. Can score from left side, quick around the cage but is 5'4" 125 and has a lot more growth left in him. He won't get a look at all at that size. Then come 2 yrs when he reaches hopefully full potential growth it will be too late. These coaches are looking for the physically matured kid right now.