We all know that the Buffalo Bills great season this year was due in large part to how well the defense played.

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So where does this year's defense rank in Bills' history? Pretty close to the top.

This past season's D was the first unit since 2004 to finish in the Top 10 in total defense, run defense, pass defense, and scoring defense.

The Bills ranked 3rd overall in defense this season.

The good news is that a majority of the starters are returning and the players that are free agents have already expressed a desire to return to the club.