I think there is a very slim chance that the Chargers will sign unrestricted free agents Vincent Jackson and Marcus McNeill. I even doubt that they will play a down for the Chargers at all this year. As unrestricted free agents they can sit 10 games. This would open up negotiations but they would both most likely only earn about $189,000.00 by playing the last six games so I doubt they would want to do that since they would both be ticketed for free agency in 2011 and neither would want to risk injury.
The Chargers have done their share of cost cutting this off season. The let long time running back LaDainian Tomlinson, nose guard Jamal Williams and cornerback Antonio Cromartie go to save some cash. You can arguably say they let a hall of fame running back, the fifth best corner in the league, and the second best nose guard in the league go without any real compensation.