The Oakland Raiders began the search for possible running back depth options as they worked out former Browns, and Redskins running back James Davis. The former Clemson running back was a sixth round pick of the Browns back in 2009 and has been a limited producer in the NFL. He had 19 carries and four receptions in 2010, but spent 2011 bouncing between the Texans and Lions practice squads.
The Raiders are in need of running back help as they try to figure out the post-Michael Bush era. Darren McFadden will remain their starting running back, but given his injury history, depth is needed. The Raiders are hoping for big things from Taiwan Jones as a complement to McFadden, but he is only a second year back. At this point it would help to bring in some competition, even if Davis has not been the most dynamic of running backs.
The 49ers running back situation is focused on Frank Gore and Kendall Hunter, but they are on the lookout for competition for third string back Anthony Dixon. Although Dixon brings great energy to special teams, he has a bad habit of being a bit too much of a dancer for a big guy. Although he continues to stick on the roster, the team continues their search for competition.