[EDITOR’S NOTE: this is a special guest contribution from Patrick Causey. You can follow him on Twitter: @PatrickMCausey.]
Back in 2012, the Pro Football Researchers Association dubbed net passer rating differential the “Mother of All Stats.” Stated plainly, net passer rating differential is the difference in QB rating between a team’s own quarterback and the quarterback it faces. If a team has a positive passer rating differential, its quarterback is consistently outperforming the opponent’s quarterback.
So why is this the “Mother of All Stats”?