Future problems at CB for the 49ers

During the tenure of Jim Harbaugh as the San Francisco 49ers' head coach, the club has had a pretty impressive defense, with high-level players at each level. The secondary took a hit this offseason with the departure of Dashon Goldson, but the club used a first-round pick on Eric Reid, who may become a building block for the unit (as Goldson was) for years to come. The situation at CB seems reasonable for this season, but things are going to get tricky there once the final whistle of 2013 sounds.