FILE - In this Sunday, Dec. 24, 2017 file photo, Tennessee Titans head coach Mike Mularkey watches from the sideline in the second half of an NFL football game against the Los Angeles Rams in Nashville, Tenn. The Atlanta Falcons are bringing back two familiar names by hiring Dirk Koetter as offensive coordinator and Mike Mularkey to coach tight ends. Koetter and Mularkey are joining coach Dan Quinn’s staff following stints as NFL head coaches. (AP Photo/James Kenney, File)