Shell went 56-41 (.577) during his tenure with the club, with winning seasons in four of his five complete years.
Shell has not coached since he left his post as offensive line coach of the Atlanta Falcons in 2000. He has instead worked in the NFL offices as senior vice president of football operations and development.
Now that the coaching carousel has finally come to a halt, Shell and Davis can complete the staff and begin working on free agency and the draft.
Shell is the first black head coach to be hired this offseason - as Herman Edwards was technically traded to the Kansas City Chiefs. Shell's hiring brings the number of black head coaches in the NFL to a record seven.