A series of interview with coaches, players and other associates about Bill Belichick attempted to dig deep into how he operates and his psychology.

"Bill lived this game his whole life," said Bill Parcells. "Growing up with football in your life, that experience as a young man at the dinner table, is invaluable. He was educated to the nuances of the sport at a very young age. By the time he got his first job, he already had experience just from living it with his dad. I think that's where the foundation was."

"Bill likes creating the image of an outlaw, the tough guy," said a former NFL head coach. "I think he really relishes it. But who is he really? He was kind of a geeky kid. Not that athletic. A failed football player."

"His dad would take Bill to work when Bill was 9 or 10," said Phil Savage. "Things would get busy and Bill would end up in a room or a closet by himself with a projector and a stack of film, and it's like, 'Son, take these tapes and tell me how many times they ran split back.' And Bill just devoured it. He always saw video and film and the mental side of the game as the great equalizer for him."