A league source tells us that the Bengals have fired defensive coordinator Chuck Bresnahan.
Bresnahan spent three years in the position. His predecessor, Leslie Frazier, was fired after the 2004 season.
It's unknown whether the decision to fire Bresnahan was made by head coach Marvin Lewis, or by upper management.
On Monday, Lewis defended his staff. "I'm very pleased with what our coaches have done this year," Lewis said. "They've gone through some trying times with new players and injuries. It's very difficult each and every week to look at a different group of guys, moving guys from position to position. I thought they handled that very well."
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