Nelson Pressley: “Victory rituals have been part of football for decades. … But this season’s repertory ensembles are different from the soloists who have historically commanded the end zone, from Billy ‘White Shoes’ Johnson and his Funky Chicken to Ickey Woods … doing his light-footed soft shoe known as the ‘Ickey Shuffle.’ … Three Kansas City Chiefs performed a potato sack race. Five Detroit Lions formed a boisterous (if bulky) Rockettes-style kickline. Flocks of Philadelphia Eagles danced the Electric Slide.”