Moe is coming back. It just doesn't make sense to leave. You don't develop at the end of the bench on an NBA team, and that is where he'll be for two years with his frame and shooting ability. He might slip into the second round with all of the NBA ready upperclassmen and the incredible amount of young, lengthy talent this year.
I think Lav is just being a master recruiter. Honestly, this is win-win from a recruit's standpoint: Lavin produces yet another NBA player or more minutes to be had 
I want Moe back too. But I don't think that's true at all. Think about it: are you going to improve more when you have to split time between classes and basketball or when you work on your game and body 8 hours a day? When you have access to coaches 24/7 all year round, or when the NCAA limits you to 2hrs of practice a day from November till March and prevents you from practicing with coaches all summer?
We rightfully brag that 3 of our coaches have NBA experience; guess what... every coach on an NBA staff has NBA experience.
At the end of the day it's the equivalent of working at basketball full-time versus part-time. To me there's no question you improve more as a player in the NBA, whether you're starting or not.
Would this even be a question in other sports? Nobody doubts that prospects improve more with the Yankees pitching coaches in the minor leagues, or the Giants O-line staff, then they would've with their colleges. The nba is no different. Part-time athletics v. full-time.
Now there's still a huge difference in guaranteed money between the bottom of the 1st round and the lottery. So for that reason I think it makes sense for Moe to return, unless he knows he'll be drafted 15 or above.