The 2004 Bills started 0-4 (losing 3 games by a total of 8 points), and then went on to win 9 of their next 11 games, including a 6-game winning streak. During these eleven games they won games by the scores 38-14, 37-17, 38-9, 42-32, 37-7, 33-17, and 41-7. They looked like an absolute juggernaut, beating the snot out of everybody they faced (with the exception of the Patriots, of course).
As you know, they came into the last game of the season against the Steelers, in Buffalo, needing to win to clinch a playoff spot. The Steelers rested their starters, and the Bills managed to lose 29-24.
Talk to me about how great the Bills are at the end of the season.