'Ryan made another unfulfilled promise – that the Bills would reach the playoffs in 2015 – but it’s fair to say the largest disappointment in going 8-8 during his first season at the helm was the shocking regression of the defense. The many variables that can influence landing a postseason berth, not to mention the significant question mark hovering over the quarterback situation at the time of Ryan’s hiring, made such talk ring a bit hallow even to the most optimistic Bills fan.'