The Chargers? only acquisitions this offseason have involved claiming a running back off the scrap heap and bringing in two free-agent cornerbacks. ?We?re always looking, and nothing hit us,? General Manager A.J. Smith said this week when asked about not signing any unrestricted free agents yet again. ?I know that?s a disappointment for a lot of people.? Smith was quiet on most of his plans, but he could not deny the obvious. ?We?re in the market for running backs,? Smith said. ?Even I will not dance around the issue and have fun with the facts.?