A big measure of what makes a college football team good any given year is returning experience. While not all teams are created equal and not all experience is good experience, more often than not, players get better at football by playing football.

College football is becoming more and more of a monolith with expanded conferences and playoffs, and the Big Ten is one of the conferences leading the charge there. Now entering its second season with 18 teams, we're taking a look at how ESPN ranks all 18 programs, while ranking them against each other.

The one ranking we pay attention to more than any comes courtesy of ESPN resident advance analytics guru Bill Connelly -- S

Where things stand in the ESPN top 25 college football rankings as we look ahead to the start of spring practice for the 2025 season.