It's that time of year again! In only four days, the college football season will kickoff with a Week 0 matchup between No. 22 Iowa State and No. 17 Kansas State in Dublin. While we get excited for the matchups to come, a lot of change has occurred since January. Transfers and departures to the NFL have left plenty of big shoes to fill for teams across the country.

Three of the top five teams in our initial power rankings have new starting quarterbacks. Can Texas' Arch Manning , Georgia's Gunner Stockton and Ohio State's Julian Sayin shine in the spotlight?

With Notre Dame's depth this season, could the Fighting Irish make back-to-back national title appearances?

Here's how our college football experts have ranked the top 25 teams heading into the season.

All times Eastern.

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