Green Bay's RB situation

As the Green Bay Packers reload for the 2013 season, there are two areas of big concern on offense: sorting out who is going to be starting at the OT slots, with two former first-rounders (Bryan Bulaga and Derek Sherrod) slated to be back from injury, and figuring out their situation at RB. Will they invest in one of the big-name free agents set to hit the market, use a high draft pick on a prospect at the position, or merely stand pat with who they've got already?