There's no reason why he should have gone from that to a lottery pick in this year's draft.
Mike
He played with USA Basketball in the summer where he got his shot off and was effective against a roster of:
Ryan Anderson, Harrison Barnes, Bradley Beal, Mike Conley, DeMarcus Cousins, Anthony Davis, DeMar DeRozan, Andre Drummond, Kenneth Faried, Derrick Favors, Paul George, Gordon Hayward, Jrue Holiday, Kyrie Irving, DeAndre Jordan, Michael Kidd-Gilchrist, Ty Lawson, Damian Lillard, Creighton's Doug McDermott, Greg Monroe, Chandler Parsons, Larry Sanders, Oklahoma State's Marcus Smart, Klay Thompson, Dion Waiters, Kemba Walker, John Wall and Tyler Zeller.
A competitive workout against almost all NBA players does wonders for your draft stock apparently. Then he went to the big east which has better talent than the MVC and maintained his hugely impressive level of play against college competition.