1999 Rams, my friend. 1999 Rams.
All this league requires any more is quarterbacks. If I was the GM, my roster would contain 52 quarterbacks and a center, and I would have a dynasty. Any team can win it all if they get a top quarterback.
In the final seven games of the 2013 season, the Chiefs averaged 34.6 points per game, scored 38 points or more 4 times, and went 2-5. The NFL has ruined the sport.