OAKLAND, Calif. -- Disgruntled Oakland Raiders fans are making a high-profile plea for owner Al Davis to step down as the team's general manager. The group that put up the billboard says it has gathered more than 25,000 signatures for a petition asking Al Davis to step down as GM. AP Photo/Paul Sakuma

A billboard was posted on the freeway near the Oakland Coliseum this week, saying "MR. DAVIS, DO THE RIGHT THING, PLEASE HIRE A GM."

The group that put up the billboard says it has gathered more than 25,000 signatures for a petition asking Davis to step down as general manager. The petition also calls on Davis to hire a new GM, hire a Super Bowl-caliber coach and "agree to refrain from intervention in personnel or football operational matters."

The Raiders (3-8) have won three Super Bowls under Davis' leadership but appear headed to a seventh straight losing season. Oakland's 27-80 record since the start of the 2003 season is the worst in the NFL.