The Rams’ linebacker corps has some new help from a familiar face. Will Witherspoon, who played weakside linebacker for parts of four seasons with the team from 2006-09, has agreed to terms on a one-year deal. He provides depth and experience for a young linebacker group that still figures to feature James Laurinaitis, Jo-Lonn Dunbar, and Alec Ogletree as it starters. Witherspoon, who turns 33 next month, has played in 173 regular-season NFL games including 150 starts during an 11-year career that has included stints with Carolina, St. Louis, Philadelphia, and Tennessee. In 2006, he was one of the first free agents signed by coach Scott Linehan in St. Louis and went on to lead the team in tackles in ’06 (136) and ’07 (132). He also had a team-leading seven sacks in ’07, a year in which he was named Rams MVP.