NBA offenses are not very complicated at all as a whole. Very short sets (remember they have a shorter clock to work with so, it can't be to0 extremely complicated). There are a lot of two man games with a dish option and that is it. The college game does use a lot of those sets. the ball screen craze that college is going through right now is absolutely a result of it being used so much in the NBA. Personally I think it is way overused, especially when the screener doesn't roll to the basket or at least spins to try and block the defender. IMHO
What the spurs run would probably be better qualified as a college offense. they run a version of the motion offense made famous by one Bobby Knight.
