Football is a fun game in many ways due to the relatively small sample of games and the noise that follows. And after the quarterback position, the game of football is very much dependent on weak ties, where it doesn’t take much in the way of injuries or ineffective play to make it significantly harder to maintain success from season to season. Conversely, teams that have good injury luck or accumulate players who are able to sustain successful play for a prolonged period of time can surprise you in a big way (looking at you, San Francisco 49ers).