When Peyton can't quite explain the NFL's Passer Efficiency Rating to a math class at his alma mater, the former Tennessee Volunteer enlists the help of Falcons quarterback Kirk Cousins to get to the bottom of the NFL's most confusing statistic.

OMAHA! Peyton Manning goes through the history of quarterbacks calling their own plays and the invention that made playcalling the coach's job, with help from Cincinnati Bengals QB Joe Burrow and former Bengals QB Boomer Esiason.