Good basketball
If I were filming a sports movie, I would hire athletes to simply play the game in question on film, and edit the movie to find the sports scenes which fit my needs (and NOT the opposite: telling the actors/athletes to enact specific plays and circumstances, which always comes across as forced and scripted).
It seems to me that they did something similar for Blue Chips. Maybe they didn't actually do it my way, but the basketball looked legitimate and unforced. I also appreciated the coach speak by Bobby Knight and Rick Pitino which seemed pretty authentic, if not perfectly performed.