The Facts: The Bears have invested good money in a No. 2 running back for the third consecutive year, and the signing Thursday of Bush to a four-year contract. Bush could prove to be quality insurance if a contract agreement can't be reached with Matt Forte. Bush's deal is worth $14 million, with $7 million guaranteed.

Diehards Line:Bush is clearly the backup to Forte, who has been tendered with the franchise tag, meaning he will earn $7.742 million this season. Forte has yet to sign that tender and GM Phil Emery said Friday the team continues to work toward signing him. But in the absence of a deal for Forte, the Bears could have a bona fide starter if needed. Bush rushed for a career-high 977 yards in 16 games for the Raiders last season, starting nine as Darren McFadden was sidelined with a foot injury. He also caught 37 passes out of the backfield for 418 yards (11.3 average), so he has the kind of versatility the Bears are used to in Forte.