"...one of those weird time-space things where suddenly everyone is a beast."

Almost four decades ago, one running back (fullback) led his team to a record unmatched since. He had none of the sheer athleticism of Sweetness, amassed no lifetime record rivalling the truly great, in fact would probably miss most lists of top-tier rushers, but that one shining season he accomplished something even Sweetness never matched.

Oh, others also contributed - Don Shula, Bob Griese, Paul Warfield, Mercury Morris, the fabled "54 Defence", but to me it's the image of Larry Czonka ploughing through defenders with tacklers hanging off him like porcupine quills which typifies that Perfect Season.