But when you look in their backfield, it becomes a much muddier picture. With the release of Willis McGahee on June 13, Denver is left with Ronnie Hillman (2012 draft pick), Knowshon Moreno (2009 draft pick) and this year's pick, Montee Ball, battling to be No. 1.
No matter how you slice it, youth will be served at running back for the 2013 Broncos.
Second-year running back Ronnie Hillman says he is doing everything in his power to be "the guy" in the Broncos offense.
He took a close look at his 2012 campaign and realized he needed to get bigger and stronger to run between the tackles more effectively. By the time he played against the Baltimore Ravens in the playoffs, Hillman was under 180 pounds.
The Broncos running back went to LA and worked out with trainer Travelle Gaines and has gained over 20 pounds to get ready for the 2013 season. He's definitely bigger and stronger this year.
But he has a job to win this summer.
Check out the video above to see exactly how Hillman put on the weight and what his expectations are for the 2013 season.
Let us know in the comments below who you think will win the starting running back job for the Denver Broncos.