09/26/2011 02:37 pm ET Updated Nov 26, 2011

Redskins vs. Cowboys: A Look back At The Dallas-Washington Rivalry

I have a theory as to what the National Football League's greatest rivalry is, but I need to know what the NFL itself would say. So I call NFL Network's Mike Lombardi and ask him. Lombardi possesses an unmatched system of alliances (he has worked for everyone from Bill Walsh to Bill Belichick), an ability to seamlessly do-si-do between the executive and press boxes, and an uncanny penchant for spouting the smartest strain of the moment's conventional wisdom. In short, Lombardi is the David Gergen of the NFL. His answer will be definitive. He pauses for quite some time. Finally, he comes out with it: