What's the difference? We follow college basketball here, not the NBA. What position guys play in the League has no bearing on what position they play in college. That's the trap that JC fell into over his last few years here. He saw guys like Stanley Robinson and Roscoe Smith and said "those guys look like prototypical NBA 3's, therefore they must play the 3 here", despite the fact that they were woefully deficient in terms of basketball skill at the position.
In the college game, you need two ballhandlers, a wing, a forward (preferably versatile), and a big man.
In the NBA, you can get away with one stud ballhandler, uber-talented wings and forwards with size, and a big man.
In college, shoehorning a 6'8 athletic freak into the 3 position usually just ends up with you not having enough ballhandlers, perimeter skill, or quickness, unless said guy is a top-flight talent.