Since Les Snead took over as General Manager in 2012, the Los Angeles Rams have had five middle linebackers, James Laurinaitis, Alec Ogletree, Cory Littleton, Troy Reeder, and Bobby Wagner.
Laurinaitis was a solid player who averaged 120+ tackles for some poor Rams teams. Ogletree spent a couple seasons on the weak side, before taking over in the middle and chalked up, even with one season mostly lost to injury, over 100 tackles per season.
Littleton moved in the weak side role next to Ogletree and his pass coverage abilities charged his meteoric rise, making Tree replaceable.