From a poster on the phog that would know. There was also stuff in this post about how he didn't take the loan while playing at KU but this is separate and I found it interesting.
"EJ is actually very sharp, kind, Coach level BBIQ and loves KU. He’s currently in Lawrence because he’s getting fucked over by his Euro team and has helped some current guys more than you’d think (on the court, media, normal frustrations in a season, helping teach them what Self wants, etc)."
He was also apparently dead set on going pro with TRob but the injury kept him back.