ESPN.com is ranking the top coaches in NFL history and unveiled Bill Belichick as No. 7 on their countdown today. Along with his three championships and five Super Bowl appearance, it's his relentless focus is what has made the Patriots a model franchise and is the reason why he's on this list.

Besides the main story, there are several sidebar features and videos that go along with today's focus on Belichick:

* Ashley Fox: Belichick would have ranked higher if not for losses to the Giants in two Super Bowls

* Mike Reiss: Legacy, influence of Belichick

* Belichick on the Bill Parcells coaching tree

* Parcells/Belichick coaching tree photo gallery

* Video: Tedy Bruschi, Mike Lombardi, Tom Brady and Robert Kraft discuss why Bill Belichick is one of the greatest coaches in NFL history.