Signed running back Trent Richardson.

Signed cornerback James Dockery and quarterback Christian Ponder.

Signed safety Nate Allen.

Signed defensive tackle Dan Williams, center Rodney Hudson, tight end Lee Smith, running back Roy Helu, Jr and linebackers Malcolm Smith and Curtis Lofton.

Released linebacker Nick Roach, safety Usama Young and running back Maurice Jones-Drew.

Released safety Tyvon Branch.

Signed kicker Giorgio Tavecchio.

Named Ken Norton Jr. defensive coordinator.

Named Bobby Johnson tight ends coach, Rob Moore wide receivers coach, Bernie Parmalee running backs coach and Tracy Smith assistant special teams coach.

Signed safety Charles Woodson to a contract extension.

Named Mike Tice offensive line coach, Todd Downing quarterbacks coach, Marcus Robertson defensive backs coach and Sal Sunseri linebackers coach.

Named Brad Seely special teams coordinator.

Named Jack Del Rio head coach.