thinking it over for a couple more minutes, here is my guess. "relative to the other kids on the team..." - i think this coach is talking in relative terms, on a team of freshman. he is saying the player has good IQ for a freshman, which probably implies circa C- iq.
the eval might just be talking in absolute terms, to basically allow room to give info on juco IQs as well. actually, i dont think that is right. im trying to think of some juco evaluations, i think they used terms like the ones you have there. if it was all absolute, you'd think jucos would either be above average or exceptional, or something like that.
so, new theory. your animal house watching, vegas going, crack smoking assistant coach was just really high during the eval.