On September 15, 2008, NBC Sports reported Davis was unhappy with Kiffin, and intended to fire him as soon as the following Monday or Tuesday. On September 30, 2008, Davis fired Kiffin over the telephone. At the televised news conference announcing the firing, Davis called Kiffin "a flat-out liar" and said he was guilty of "bringing disgrace to the organization". The Raiders said the move was made for cause, meaning they would terminate his contract immediately without paying the $2.6 million that was left on it for 2008. Kiffin later added in an interview with ESPN that he was not proud to be associated with Davis's accusations and was actually more embarrassed for Davis than himself. The Raiders subsequently released a letter Davis sent to Kiffin on September 12 that warned him that he was on the verge of being fired for "conduct detrimental to the Raiders," including repeated instances of making excuses and outright lies. Kiffin's post-firing press conference was canceled. Kiffin filed a grievance against the Raiders, claiming that he was fired without cause, but on November 15, 2010, an arbitrator ruled that Davis did indeed have cause to fire Kiffin. Kiffin's short tenure as the Raiders' head coach ended with a 5–15 record. Offensive line coach Tom Cable was given interim head coaching duties for the remainder of the 2008 season and was later made their permanent head coach on February 4, 2009.