Number likely to be kept: 4
On the 2008 opening-day roster: RB Ronnie Brown, RB Ricky Williams, RB Patrick Cobbs, FB Boomer Grigsby
The big training camp question: Can any of the three young players do anything in camp and the preseason to convince Tony Sparano and his staff to keep them over the four established veterans?
Analysis: Just like quarterback, the Dolphins appear completely set here. There's talent and depth at this position, so much so that Patrick Cobbs might not get many snaps on offense despite doing nothing but producing whenever his number is called. Brown should be even better this season now that he's almost two years removed from his severe knee injury and Williams is still going strong despite turning 32 in May.
Who will make the team: Brown, Williams, Cobbs, Polite