Four weeks into the season is a good time to reconsider preseason projections. Some squads expected to be national contenders have underwhelmed, while others expected to finish in the middle or at the bottom of their respective conferences have surprised with strong starts. While it's too early to know how many of the latter group can compete for a spot in the College Football Playoff, some have made such strong cases that it's impossible to dismiss the possibility.
This is especially true for those teams that surprisingly remain undefeated. Which one has the best chance of making the playoff?