There were a lot of small things that snowballed into the New England Patriots' success which led to their dynasty. Tom Brady's franchise Hall of Fame speech outlined how these range from the help that Robert Kraft gives all the way to the schemes that Bill Belichick uses on game day. But, some nuances were rarely seen by the public. These helped guys like Julian Edelman, Rob Gronkowski, Randy Moss, all the way to Dan Koppen grow to win the Super Bowl a lot.
Bill Belichick is the known head honcho of the Patriots.