First it was with Wes Welker, Randy Moss, and a pass-happy shotgun spread offense. More recently, with Rob Gronkowski and Aaron Hernandez, the offense became a two–tight end–based attack. With Gronkowski set to miss the rest of the playoffs, and Ridley and Vereen continuing to improve, the Patriots appear to be evolving again, this time relying on two running backs. Throw in three different offensive coordinators — Charlie Weis, Josh McDaniels, and Bill O'Brien — and it seems that the only constant in New England, other than Belichick and Brady, has been change.
But what's allowed New England to maintain its success among the shifts is that its quarterback and coach aren't the only things that have remained the same. The core of the Patriots' offensive system has been threaded through its various stages, both stabilizing the transitions and allowing the next evolution. The design and organization of New England's system is better suited than any other to adapt to an NFL game in which change — of personnel, of trends, of schemes — is the only certainty.