The preseason poll has become an institution in college football. We've all seem them, read them, and many of us have created them.

But preseason polls rarely live up to their hype. Only 10 teams have been ranked the preseason No. 1 and won a National Championship.

With that in mind, there are several teams that appear in the top 25 that are just not going to live up to the hype this year and are going to under-perform.

The preseason rankings used in this article are an average of 23 professionally produced preseason polls. These polls range from Rivals.com to ESPN to the Atlanta-Journal Constitution.

So what will make a team under-perform this year? Two words: offensive line. That's right, th...

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