A day later, the franchise has focused in on his replacement.
Alex Marvez of FOX Sports is reporting the Lions will hire David Walker as the team's new running backs coach.
Walker worked with Lions coach Jim Caldwell in 2011 as his running backs coach in Indianapolis -- his first foray into coaching in the NFL -- and held that position through the end of the 2014 season.
Prior to his time with the Colts, Walker coached at the University of Pittsburgh from 2005 until 2010. While at Pitt, he coached LeSean McCoy, LaRod Stephens-Howling and Dion Lewis, all of whom reached the NFL. Before Pitt, Walker spent 10 years at Syracuse as the team's running backs coach from 1995 to 2004. He had 1,000-yard rushers at Syracuse from 2000 to 2004, including James Mungro, Walter Reyes, Damien Rhodes, Dee Brown and former Miami Dolphins fullback Rob Konrad.
Walker is the No. 7 rusher in Syracuse history with 2,643 yards from 1989 to 1992. The 46-year-old Walker graduated from Syracuse in 1993 and is originally from Rochester, New York.