If BYU goes undefeated to end the year,what are the chances they play for the BCS National title?

There was this debate about this very topic tonight on Fox radio. Bottom line IF BYU runs the table and not only beats Oklahoma, but beats Florida State as well as Utah and TCU, then God bless them they deserve to play for the national title. I know they are in the Mountain West, but it won't matter they will deffinatly get the oppurtunity to play for the national championship.