A look at three potentially significant under-the-radar offseason moves for each NFC West team, concluding with the San Francisco 49ers:
1. Signing Perrish Cox. The 49ers have been looking to upgrade their depth at cornerback. Cox became available on the relative cheap -- for about $1 million over two years -- after his acquittal on sexual assault charges. Cox, a fifth-round choice for Denver in 2010, played for current 49ers secondary coach Ed Donatell when both were with the Broncos. Coach Jim Harbaugh praised Cox's performance in offseason workouts, suggesting the 25-year-old defensive back would help on special teams and in the secondary. Cox started nine games in 2010. His legal problems kept him off the field in 2011.
2. Moving Boone to right guard. The 49ers were weak at right guard last season, bouncing from Chilo Rachal to Adam Snyder. They passed on options available to them in free agency. It's now looking like tackle Alex Boone projects as the starter for Week 1. Boone is arguably one of the five best offensive linemen on the team. Finding a way to get him on the field would make sense in that context. And with Boone at guard, the team can more easily groom Daniel Kilgore to eventually succeed Jonathan Goodwin at center. Kilgore previously projected more at right guard. Moving Boone also buys time for fourth-round choice Joe Looney to recover from foot surgery. Looney appears similar to O'Brien Schofield (Arizona) and Walter Thurmond (Seattle). Injuries made all three available later in the draft.
3. Positional shuffling. The 49ers will again be looking to keep some position players almost exclusively for special teams. Rock Cartwright is one candidate after the team lost Blake Costanzo in free agency. Tavares Gooden and Colin Jones were others last season. Making room for such players can require roster flexibility. Partially to that end, the 49ers are trying multiple players at more than one position. Defensive lineman Will Tukuafu and linebacker Michael Wilhoite have worked at fullback. Cornerback Cory Nelms and safety Ben Hannula have worked at receiver. Defensive lineman Demarcus Dobbs has played tight end.