And he called the defense's ability to change up week to week "the Belichick effect". Perry: Examining the state of the Patriots offensive line "I think that's the NFL in the last five years, especially, it's kind of the Belichick effect where teams are more reluctant to really try and scheme up opponents instead of relying on their base defense," Rodgers said to reporters. "There's less and less teams like the Lovie Smith Bears defenses over the years that say 'Hey, screw it, we're going to play four-man front, play Tampa-2 the entire game and make you go the whole field, and strip the ball and tackle securely and stop the run with a six-man, seven-man front.