I have an admittedly unsupported belief that he will be able to get better shots if he learns how to play off the ball more. I want him to take shots--lots of shots, more than he takes now--but I don't want him to have to create all his scoring opportunities for himself. I believe that if Roy allowed him to, Miller could make it easier for Roy to score, make him even more efficient than he already is. Possibly, it could also make his scoring opportunities less stressful on his body, help him take less of a pounding, potentially extending his career and his prime, if he were to get the ball in more space, take shots that were less contested.
Obviously, I could be way off here. But I'd like to see what would happen if Roy were to commit himself to this notion for a period of time.