Receiver could be a position of need in San Diego. Vincent Jackson has been designated the Chargers' franchise player, but that tag might not exist in a new collective bargaining agreement, meaning the disgruntled wideout could leave in free agency. Malcom Floyd is scheduled to be a free agent, and Seyi Ajirotutu, Patrick Crayton, Richard Goodman and third-round draft pick Vincent Brown are under the team's control. Buster Davis has one year left on his contract, but The Union-Tribune reported that he isn't expected to return.