"Jaguars defensive line coach Joe Cullen will return to Jacksonville's staff next season, according to a source.

The Jaguars hired Cullen before the 2010 season and tasked him with fixing a unit that had 14 sacks in 2009.

Cullen's return is the second defensive coach known to be returning to Jacksonville from last season's staff. New Jaguars head coach Mike Mularkey also retained defensive coordinator Mel Tucker."