Athens, Ga. ? Georgia can win every game and it still might not be enough.

Ditto for Notre Dame, Ohio State, Miami, Virginia Tech and Oklahoma all trying to finish the season unbeaten and hoping the complicated BCS formula works in their favor.

With six unbeaten teams atop the Bowl Championship Series standings and only two spots available in the Fiesta Bowl the supposed national title game college football heads into the final month of the regular season facing the possibility of one big mess.

Take No. 5 Georgia, which could go 13-0 and not get a chance to play in Tempe, Ariz., on Jan. 3.

“I don’t think it would be fair for anybody to go undefeated and not be in the national championship game,” quarterback David Greene said Tuesday.

It could happen to as many as three teams. No. 1 Miami (7-0) and No. 3 Virginia Tech (8-0) play each other on Dec. 7, which will effectively eliminate one of the contenders.

But No. 2 Oklahoma (7-0), No. 4 Notre Dame (8-0), Georgia (8-0) and No. 6 Ohio State (9-0) all are in position to finish with perfect records.

“It would be tough (to miss out),” Miami tight end Eric Winston said. “I just hope it’s not us. All the hard work that goes into a season, getting ready to play every game, it would be ridiculous.”

The BCS rankings will determine the Fiesta Bowl matchup.

If one or more unbeaten teams get left out, there surely will be plenty of whining and renewed calls for a new system.

“I think a playoff would be good,” Georgia receiver Terrence Edwards said. “That way, you can prove who’s best on the field.”

This week, the top six in the BCS are: Oklahoma, Miami, Notre Dame, Georgia, Ohio State and Virginia Tech.