Joe Mazzulla is incredibly intense and obsessed with winning, but the Celtics might face some early bumps without Kristaps Porzingis. They might also start the season limiting the minutes of his core players, but does Mazzulla have the discipline to do so if it means a few more losses early in the year? John Karalis of Boston Sports Journal discusses that, why the bench is so important, and the conversation they need to have with Tatum especially to make Joe's life easier.

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