The Cowboys like starting running back DeMarco Murray, but he has had injury issues and there are questions about whether he can stay healthy over the long term.
It means the Cowboys could be in the market for a running back in the middle rounds of this weekend's NFL draft.
"There's a lot of things that can help our football team," Cowboys executive vice president Stephen Jones said on San Antonio's KZDC-AM on Tuesday afternoon. "If you do look, unfortunately, at DeMarco's history, he had (health issues) at Oklahoma, though he was very productive. He's had (health issues) here. So obviously without Felix Jones in the fold right now, we don’t have that answer in terms of having a complementary back to DeMarco, so that will be something we will have our eyes on as well."
Murray missed six games last season because of a severe bruise on his left foot and finished with 663 rushing yards. The Cowboys' rushing attack finished No. 31 in the NFL last season, leading to the release of running backs coach Skip Peete and raising questions about the offensive line.
The Cowboys need to improve this area if they're going to take pressure off quarterback Tony Romo in 2013.