San Diego free agency primer

Posted by ESPN.com's Bill Williamson

San Diego Chargers

Salary cap situation: The Chargers will be in the $15-20 million range. They will be able to do a few things if they decide to.

Needs: Linebacker, defensive tackle, safety, guard.

Possible targets: Baltimore linebacker Bart Scott; free agent Gibril Wilson; Miami linebacker Channing Crowder.

Biggest possible departures: Guard Mike Goff; defensive end Igor Olshansky.

How active will they be?: The Chargers usually rely on the draft and keeping their own players. They are concentrating on redoing the deal of running back LaDainian Tomlinson and signing stars such as quarterback Philip Rivers and tight end Antonio Gates this offseason. There may be some additions but, as always, the Chargers will be selective.