Buddy Ryan's "46" defense brought six players lined up on the defensive line four linemen and two linebackers standing up on the outside, and none of the six lined up opposite the offensive tackles. There were two linebackers, three defensive backs, with one a hybrid safety/linebacker. The 46 in the 46 was safety Doug Plank, who was long gone by Super Bowl XX. Ryan could never remember his name, so he always called out 46 and the name stuck. And the Bears stuck it to the NFL all season.