The Packers defense isn't using some secret formula; they're executing their plan to perfection

It’s one thing to have a plan in the NFL. Mike Pettine had one. Dom Capers too. And often, those plans are sound. These are long-time NFL coaches after all. But what the Packers have been able to accomplish this season, playing precisely to plan with Joe Barry, stands out as unique in the NFL with a new staff, a slew of new players, and a host of injuri…