There are actually many advanced statistics available to NBA teams via SportsVu. It can measure who passes to who, how far people travel on a possession, gravity (how close opposing defenders are drawn to the offensive player, how much someone dribbles, and a host of other stats. I don't think the system is in place at many colleges (if any).

The tricky thing with the draft is finding players that have a high ceiling and can perform far in excess of what they were able to do in college. Sabermetrics can help you identify that some of the time but I think attitude, ability to improve specific skills, and innate physical attributes are things a team would have to evaluate in person to uncover undervalued talent.