the injury looked severe but Campbell eventually walked off the field on his own. Trainers said that Campbell's ligaments were not torn and announced his injury as a bruised knee. On December 6, 2007, Campbell dislocated the patellar ligament of his left knee during a game against the Chicago Bears. The injury did not require surgery but Campbell did not play for the remainder of the season. When Joe Gibbs retired for a second time at the end of the 2007 season, the Redskins hired Jim Zorn, first as offensive coordinator and then naming him head coach. Zorn said at the time he would also serve as quarterbacks coach. The Redskins started the season 6–2, prompting observers to declare Campbell one of the NFL's elite quarterbacks, and the "tough love" approach from head coach Jim Zorn a success. The team, however, then went on to lose six of their remaining eight games to end the season 8–8, missing the playoffs. At the end of the season, it was unclear if the Redskins were on the road to improvement or decline. Questions arose on the future of Campbell as the starting quarterback for the Washington Redskins. Despite pursuing other quarterbacks in the offseason, the Redskins were unable to acquire Jay Cutler or Mark Sanchez, opting to start Campbell for the last year of his contract. Campbell and the Redskins ended 2009 with a 4–12 record, one of the worst in Redskins' history. The often rocky relationship Campbell had with head coach Jim Zorn ended with Zorn's firing. New Washington head coach Mike Shanahan said the Redskins would tender Campbell an offer leading up to the 2010 free agent period, ensuring that if he signed with another team, Washington would receive draft picks in compensation. Oakland Raiders After the Redskins acquired Donovan McNabb, Campbell was traded to the Oakland Raiders on April 24, 2010 for a fourth round pick in the 2012 NFL Draft. On the same day, Campbell received a one-year contract extension through the 2011 season. Raiders owner Al Davis compared Campbell to former Raiders quarterback Jim Plunkett. In the opening game on the road against the Tennessee Titans, Campbell had an unspectacular start to his Raiders career as the Raiders were routed 38–13. He would complete 22 of 37 passes for 180 yards and threw one touchdown and one interception. Campbell and rookie offensive linemen Jared Veldheer, playing in