Finding minutes and the right role for all three is the definition of a good problem to have. When the Celtics landed Malcolm Brogdon this offseason, the move was almost universally lauded as a momentous and mutually beneficial one. If Brogdon could stay healthy, he could provide exactly what they needed and serve as the missing piece to help take them to the next level. The only question was whether or not the Celtics had too much of a good thing. Brogdon, Marcus Smart and Derrick White are all excellent players, but would there be enough minutes and enough of…