Is a veteran running back in the Cowboys' future?

Thanks to the Tony Romo deal, the Cowboys gained $5 million in salary cap space.

Before the Romo deal was completed, the team picked up veterans at safety (Will Allen) and linebacker (Justin Durant), solving some of their offseason goals.

What about running back?

Yes, the Cowboys have the emerging DeMarco Murray, but his foot injury last season and the recent history of health problems among their running backs has raised concerns at Valley Ranch about the position.

The Cowboys love how Murray competes.

However, the lifespan of a running back is short.

Season to season, game to game, moment to moment.

With a little more than $5 million in cap space that will increase to $7 million in June due to the release of Marcus Spears, should the Cowboys sign a veteran running back?

Ahmad Bradshaw, who was released by the New York Giants, is available but most likely isn't looking to become someone's backup.

More realistic names are Felix Jones, Cedric Benson, Kevin Smith and LaRod Stephens-Howling.

Cowboys owner/general manager Jerry Jones said he's open to bringing Jones back into the fold, but the running back's health was an issue in his time with Dallas. With salary-cap space and a need for a backup running back to compete with Lance Dunbar and Phillip Tanner, the Cowboys might invest in a veteran running back to provide depth for 2013.