Just when it looked like Boston area was free of King Sourpuss, Joe Mazzulla says, 'Hold my beer'
In the void left behind by Bill Belichick, Joe Mazzulla’s introverted-ness has risen to the occasion. And no, I’m not talking about the Boston Celtics giving the New England area a front-runner they desperately need. Mazzulla is the boorish head coach of a major professional franchise that the affable Jerod Mayo…