The San Diego Chargers enter the draft with running back as a glaring need. They are virtually assured to draft a running back within the first two or three rounds in an attempt to find a new lead-back to replace LaDainian Tomlinson.
In addition, it would not be altogether surprising if San Diego were to spend one of its later picks (four through seven) on an additional running back who can compete for snaps, provide some insurance, and generally round out the team.
Finding a good tandem can go any number of ways. For the sake of argument this look at good pairings will focus almost solely upon the two draftees, looking at one mid-round and one late-round possibility.