Really, just because he had one up-and-down year? Did he not start for the winning team in the national championship game a couple years ago? I'm pretty sure he has the ring to prove it.
Yes and no. He certainly reached the pinnacle of team success, much of which was predicated on having the best player in college on his team. He did not have much personal success, or he likely wouldn't have left.
Don't get me wrong I like Roscoe and wish him well, but he did not produce as much as fans and (I'm sure) he would have liked.
UNLV is actually in need of a SF, assuming they don't go 3 guards. They have a pretty good recruiting class with Bennett and Reinhardt (dude can shoot) as well as bringing in Birch.
Roscoe does have to sit out a year from what I understand, irregardless of major, so Moser could be gone to the NBA.
I still don't see Roscoe getting many touches on that team, but a frontcourt of Birch/Bennett/Roscoe would be long and athletic. Assuming Birch and Bennett don't leave for the NBA. Of course if those two and Moser stay, I'm not sure Roscoe would even start.