The St. Louis Rams are still looking for a defensive coordinator. Detroit Lions secondary coach Tim Walton became the fourth candidate interviewed for the job, according to Jim Thomas. He joins Dick Jauron and Mike Singletary as the third man currently in the mix to replace Gregg Williams for a job he never really had.

Unlike the other two candidates currently under consideration, Walton has never been a head coach or even a defensive coordinator in the NFL before. He joined the Lions in 2009, hired by Jim Schwartz when he took over the head coaching job there. Prior to that, he was the defensive coordinator at the University of Memphis, getting him some familiarity with the Tennessee Titans coaching staff then led by Jeff Fisher.

Fisher's son knows Walton as well, coming to the Rams last year after working with Walton as a defensive assistant in Detroit in 2011.