To outsiders, the Los Angeles Chargers got risky in the second round of the NFL draft with Jake Slaughter.  From an outside view, Slaughter was one of the best centers in the draft outright. But after the Chargers signed Tyler Biadasz in free agency to start at center, the fact Slaughter never played a snap at guard in college raised eyebrows.  Internally, and very clearly, the Chargers aren’t too concerned about the whole thing . All signs point to Slaughter being in the race for, and likely winning, a starting guard spot next to Biadasz.  But until that comes to fruition, the Chargers aren’t going to stop being listed as fits for some of the top remaining guards in free agency.  Rightfully so, too.…