Boston Celtics Catholic coach leaves reporters speechless with simple answer about Christian faith I wonder how many of those have been Christian coaches, Boston Celtics Joe Mazzulla said when asked if he took ;pride; in the fact that the head coaches of both teams in this years NBA Finals are black. BOSTON (LifeSiteNews) The head coach of the National Basketball Associations Boston Celtics again left reporters speechless after his team took a 2-0 lead against the Dallas Mavericks in this years NBA Finals. Joe Mazzulla, 35, has been at the helm of the historic Celtics franchise since mid-season last...