The Chargers are expected to interview 49ers in-limbo defensive coordinator Greg Manusky for the same position in San Diego.
It's a natural fit, and not just because Manusky runs a 3-4. A longtime Chargers special teamer in his playing days, Manusky spent the 2002-2006 seasons coaching San Diego's linebackers (under Wade Phillips for two of them), and was a very capable coordinator in San Francisco. He's leaving only because new coach Jim Harbaugh wants "his guy" (Vic Fangio).
So the Chargers already sitting up interviews for DC position... its pretty safe to say Rivera is a Panther.