"A lot of quarterbacks, when they go through their progression, they're stuck on one side," Peterson said. "They're not seeing the backside checkdown or me leaking out in the flat or a back leaking out in the flat. You've got guys like [Brett] Favre and Drew Brees who are Hall of Famers, they're Hall of Famers for a reason. Not only can they throw the ball, but they have other qualities that make them top-tier quarterbacks. ... You've got a guy who knows what's going on, he knows every guy's position and where they're supposed to be."