If Jack put on 20 pounds and changed his mentality, he could work in the NBA. He once said something like " I am smaller than most guys so I have started shooting outside shots more" -something like that. It is a shame he let his size get in the way of becoming a better player. Still has a chance to pack on more weight and be able to play inside with NBA bigs.
One thing about Jack- his fundamentals weren't sharp. Passing- no. Dribbling-too much. Turnovers-yes. Has to improve a lot to get on a roster in the states. Do I think he can do it?Absolutely. I have confidence in any Rutgers grad.
Mack is mack. I would love to see him get on a summer league. If he was 6 2 he would be there. Size is the only limiting factor for Mack. Heart, will,skills are there.