Penn State has only entered the season as the AP's No. 1-ranked team once before. Joel Klatt recently ranked the Nittany Lions No. 1 in his post-spring top 25.

Fox Sports' Joel Klatt shared his top 25 after spring ball, and it has an interesting look. When you examine the top 25, there is a lot of turnover at key positions for some of the teams that most expect to be among the best in college football this year.