I had been screaming from the mountain tops since the end of the season (before that, really) that the Chargers need to upgrade the offensive line. After nothing was done in free agency nor the draft (at least nothing significant), I started to think maybe I was alone in thinking the o-line was in shambles. The coaches, scouts and front office would know about the team than I would, right? And I had not heard any "talking heads" discuss the San Diego blockers. But then here comes Grantland to my rescue in an article about teams that got worse this offseason: "San Diego Chargers Hole Remaining: Offensive Line Maybe general manager A.J. Smith is going underground, Keyser Soze–style, and is terrified that he'll be fired if he surfaces long enough to patch up a dismal offensive line. That's the best explanation for the condition in which San Diego's line has been left after the spring. With guard Kris Dielman retiring after suffering a severe concussion and tackle Marcus McNeill failing his physical, the Chargers were left with holes in multiple spots on the line. Instead of bringing in fresh blood, though, Smith elected to hold serve with the players he had. Jared Gaither — on whom two teams gave up last season — was re-signed to play left tackle based on five competent games from the end of last season. Aging center Nick Hardwick was brought back into the fold as well, and the team will hope that backup Tyronne Green will successfully replace Dielman at left guard. Smith's brief forays into the market for help were misses: Former Raiders left tackle Mario Henderson was a washout in Oakland, while fifth-round pick Johnnie Troutman was drafted with a preexisting pectoral injury that will require surgery and likely keep him out of the 2012 season. Oh boy."