As the college football regular season heads for the home stretch, many highly ranked teams must prove their mettle if they want a shot at a national title or a BCS bowl game berth.
Some teams like Kansas State and Notre Dame have shocked the football world with unbeaten records while other teams like USC and Florida State suffered losses that destroyed their title hopes.
There is still a lot to be decided as the calendar turns to November. The polls will almost certainly change as upsets happen, conference title matchups are decided and teams jockey for position as their fate is decided by a bunch of computers.
This list of five teams takes into account what the teams have accomplished up to this point in the year, what the remaining schedule looks like and the general perception of the team at this point of the season,
Let's take a look at the teams with the most to prove.