The Bills have fired defensive line coach Karl Dunbar, Kimberly Martin of Newsday in New York reported Sunday.
Dunbar was hired in Jan. 2014. The Bills went from a league-best 54 sacks in 2014 in his first year to 31st last year with 21 sacks.
Dunbar also worked under Bills head coach Rex Ryan for three years with the Jets. He has 12 years of NFL coaching experience.