Chances are good the Broncos will have enough running backs to get them through the 2009 season. The Broncos added another one Thursday, when they signed former Houston Texans' running back Darius Walker. The former Notre Dame star was an undrafted free agent who played sparingly for the Texans in 2007, and not at all in 2008 when he split time with Houston and St. Louis. Source: Mike Kliss, Denver Post
The problem is Walker isnt a upgrade over either guy, Denver is doing some puzzling things this offseason