The gap between the good to above-average teams is quite laser thin in the NFL. On any given Sunday any of these teams can beat each other up...A few balls bounces this way or the other way, a few key injuries is all the difference to tilt the game one way or the other..
Besides Pittsburgh and New England, the field is wide open in the AFC and every one of the remaining 14 teams have a chance at the wild card spots. The Bills will be one of them. What worked for the Bills - Focus, Discipline and the ball bouncing their way a few times. They had the determination to will themselves to win the games they had a chance at winning and competing in those that they were not given a chance (the final scores may not reflect it).