Bengals' Lewis rounds out coaching staff

Cincinnati Bengals head coach Marvin Lewis has finalized his coaching staff after a series of departures since their early postseason exit.

Lewis promoted Robert Livingston to assistant defensive backs coach. Livingston was a defensive quality control and special teams assistant in 2015, his first season with the team. He will now be the right hand man of new secondary coach Kevin Coyle, who was hired earlier this week to replace new Dolphins defensive coordinator Vance Joseph.

The Bengals also added two other offensive assistants. Dan Pitcher will work with the receivers and quarterbacks, while Robert Couch will be a quality control coach for the offensive line.