The Detroit Lions announced the hiring of Marcus Robertson as a defensive assistant coach and secondary coach. Robertson, a longtime Tennessee Titans safety, was the Titans' main secondary coach the last three seasons.
The defensive assistant spot opened up on the coaching staff when Brandon Fisher followed his father Jeff to St. Louis to help with the Rams. The remainder of the Lions' coaching staff is set to return, giving Detroit a decided edge in continuity heading into next season.
In another move with the coaching staff, Detroit switched the job title of Tim Walton, the team's main secondary coach. He is now the secondary coach and the third down package coach, meaning he will be in charge of the Lions' third down packages in 2012.
From Tim Twentyman at the Lions' official website:
"Tim is a valuable member of our staff and we're increasing the scope of his duties," Schwartz said. "Third down defense is a very important part of football."