Plus when Keaton moved to on-ball the team seemed to become more relaxed and confident on offense. Kinda like the stories I've read of what happened when Ringo joined the Beatles LOLWay better run-jump athletic, likely better defender, 2-3 inchees shorter.
Highly unlikely he has the court vision/feel for the game that Keaton had. Very few players, Illini or otherwise, have that level of "basketball IQ."