Ten burning questions for the 2013 NBA draft

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The Cavaliers are expected to choose between Nerlens Noel (left) and Alex Len at No. 1.

The Cavaliers are expected to choose between Nerlens Noel (left) and Alex Len at No. 1.

Detroit's Ray McCallum had a strong performance at the combine, with several scouts commenting he had better size (6-foot-2) and feel for the game than they expected. If McCallum was a better three-point shooter (32.3 percent last season) he would likely be a first-round pick. But a team looking for an NBA-ready backup point guard with potential could get a steal in McCallum in the second round.