'Lynn has 17 seasons of NFL coaching experience, beginning as a special teams assistant with the Broncos in 2000. He coached running backs for the Jaguars, Cowboys, Browns and Jets before Rex Ryan also gave him the title of assistant head coach in 2013. Lynn followed Ryan to the Bills in 2015, and he was promoted to offensive coordinator in Week Two after Greg Roman was fired. He served as the Bills' interim coach for the final game of the year after Ryan was fired.'