Flem File: The Super Bowl could turn on how the refs react to grabbing, shoving and flopping -- aka The Secret Dance of PI.
The NFL's replacement refs came from all walks of life and exited the stage in dramatic fashion. Who were they? Why did they do it? And where will they go now?
A few non-calls have generated heat, but officials are mostly staying in the background in the postseason, John Clayton writes in his latest mailbag.
Chad Millman explains how referees affected Philadelphia Eagles-Indianapolis Colts, Oakland Raiders-Kansas City Chiefs, more.
Among Jason Whitlock's NFL truths: why refs should address the media after games and Peyton shouldn't call all the plays.