In the 1980s and early 1990s, both the Cincinnati Bengals and the Buffalo Bills used the no-huddle extensively, and college and high school teams have increasingly moved to no-huddle approaches over the last decade. In his 1997 book Finding the Winning Edge, Hall of Fame coach Bill Walsh—whose West Coast offense fueled the growth of complex play calls—predicted that no-huddle offenses using “one word” play calls would come to dominate football. Walsh may have been a bit early, but Brady and Belichick are making his prediction come true.

Then again, while the NFL is a copycat league, not all things are so easily copied. Brady is the perfect no-huddle triggerman, given his experience and ability to process information quickly and efficiently. And few coaches in the NFL are willing to commit to the philosophy as Belichick has. One of the downsides of the no-huddle is that the offense, like the defense, is unable to substitute. NFL coaches love their toys, and they spend a lot of time trying to outsmart each other by creating specific matchups. Belichick, by contrast, values versatility, and he has personnel—particularly his two tight ends, Rob Gronkowski and Aaron Hernandez—that allow him to be flexible. Gronkowski, if he’s healthy, is a tremendous threat given his ability to decimate defenders on pass plays and as a run blocker. Hernandez, meanwhile, has recently added running the ball from the backfield to his typical repertoire of pass routes.

Belichick’s use of Hernandez as a running back is the best example of how the Patriots outflank defenses. With no traditional runner in the game, Belichick can force the defense to substitute to a zero-running-back personnel grouping. Once they’re in this pass-centric set-up, he can run the ball with Hernandez anyway. If the defense fails to react, the Patriots can simply drop back and run a pass play. And they can do this all with or without a huddle, and Brady can figure out his next move within seconds, on the fly. This is why opposing defenses hate facing the Patriots offense.