After considering outsiders such as Ken Whisenhunt, Bobby Petrino and Mike Martz, the Raiders went with one of their own and hired Art Shell as their new coach. Shell will be announced Saturday at 4:30 p.m. ET as the new coach of the Raiders. He replaces Norv Turner, who was fired after two seasons and went to the 49ers as offensive coordinator. In hiring Shell, Raiders boss Al Davis was able to correct a move he said was a mistake more than a decade ago. Davis fired Shell after the 1994 season. Shell, who was 56-41 as the Raiders head coach from 1989 to 1994, will get a chance to right that wrong. Shell was working for the NFL when he was called by Davis last week to interview for the job. Shell flew to Oakland and interviewed last Thursday. Once Whisenhunt, the Steelers offensive coordinator, decided to stay with the Steelers and informed the Raiders of his intentions Thursday, Davis put in a call to Shell.