Who is Celtics head coach Joe Mazzulla? Former coach, colleague at West Virginia and Fairmont State shares secret to his potential success

[Stephen Noh]

Jerrod Calhoun coached Joe Mazzulla as an assistant at West Virginia, then later hired Mazzulla as an assistant when he took the head coaching job at Fairmont State University. He spoke of what Mazzulla is like as a coach and a person.