Malik Dia tested the NBA Draft waters in the spring before fully committing to playing his final college basketball season with Ole Miss. The feedback was invaluable. Dia has the necessary build and skillset for the next level. However, he needs refinement, even if his numbers indicate a plug-and-play starter for a tournament hopeful in the Rebels. “A lot of the feedback was, ‘Very skilled and very versatile.’ The next step would be to simplify my game and try to get myself into better shape, which I think we’ve done a really job here at Ole Miss of doing,” Dia said earlier this month. “Each a…