The Chicago Bears have retained defensive coordinator Mel Tucker and have fired defensive line coach Mike Phair and linebackers Tim Tibesar.
"We thank Mike and Tim for their effort and dedication," Bears coach Marc Trestman said. "They are men of high character and integrity. These are not easy decisions and we do not attribute our lack of success on defense to two individuals. We need to improve in all areas defensively and that will be a focal point for us this offseason.
"The process starts with me as the head coach. Our search for a defensive line and linebackers coach has begun and we will be looking for the best candidates whose experience can bring the most out of our veteran and young players in both areas."
The Bears allowed a franchise record 478 points, 6,313 yards, 2,583 rushing yards.
"We believe Mel is the right person to lead our defensive unit," Trestman said. "He fully understands where we need to improve, has the skill set and leadership to oversee the changes that need to be made and to execute our plan to get the results we know are necessary.
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Aaron Wilson covers the Ravens for The Baltimore Sun.