This is accepted as fact because Belichick has made a living out-preparing his fellow coaches. That maniacal level of focus has to come with some kind of drawback, and perhaps that is a slight lack of awareness when it comes to things not directly impacting his current game. But do we really believe that there wasn't a single member of his football brain army already researching Matt Ryan, Julio Jones and Kyle Shanahan the moment they started thoroughly drubbing the Packers that afternoon?