I love Bazz, but there is NO CHANCE he is a first round pick in 2013. I do think he has a chance to carve out a bench role in the NBA at some point.
If would make most sense to come back for a senior year, and see if he could sneak into the late first round with a highly successful run in next year's tournament, but even at that, chances of landing in the first round are suspect.
The kid is gonna make money overseas; IMO, his most likely route to the NBA starts overseas for a year or couple. So, again, to me, it becomes a question of whether an additional year in college and a degree out ways making $$$ on another continent, not so much the possiblity as a first rounder in the 2013 nba draft.