There's no reason why Mason couldn't make his way in the association if given the chance. One of the better players leading the CeltIcs for Brad Stevens is 5'9" (5'8") Isaiah Thomas. Strong and quick like Mason. Both like and can play thru contact. Both are good shooters with an obvious uncomparable difference being nba vs collegiate 3pt range. Mason would of course need to work on his defensive skills. But I really think someone will end up wanting to see how he would fare in a D league scenario.