Guess Wonko was wrong. The Chargers fill their nickel CB hole with Donald Strickland. Stickland is 29 years old and has bounced around his entire career. He's somewhat small (5'10", 185lbs.) and is more of a cover corner than anything else.
From what I've personally seen of Donald, he's a perfect fit for the Chargers. He has been consistent enough that teams have tried to make him a starter in the past, with poor results. However, as a nickel CB he's probably better than Steve Gregory.