Darren McFadden is one of the top runners in the NFL, but he is at his best when playing as part of a rotation that features another workhorse. Michael Bush thrived in that role in the past, but he departed via free agency in 2012, and McFadden was incapable of shouldering the load on his own. By adding Bell to the lineup, the Raiders would alleviate some of the pressure on McFadden, while also adding some variety to the running game. Bell would provide the Raiders with some toughness, allowing the team to play power football under Dennis Allen. With both Super Bowl teams adhering to that principle, the Raiders might be wise to follow suit.