USC AD Mike Bohn resigns; helped school's planned Big Ten jump - ESPN

USC athletic director Mike Bohn resigned from his position, he and the school announced Friday.

Bohn's resignation comes at a surprising time, less than four years after he was hired from Cincinnati to replace Lynn Swann, who resigned from the job after three years. Bohn mentioned «ongoing health challenges» in a statement issued to the Los Angeles Times, but no clear reason for his decision has been provided.

Bohn told ESPN's Pete Thamel that it was an amicable split with the university.

«It's a great time with USC's emergence into the Big Ten for new leadership to move the program forward,» Bohn said.

As USC's athletic department and football team needed revamping, the 62-year-old Bohn arrived as the first athletic director in the previous 25 years without any prior connection to the school.

The biggest personnel move during his tenure was the firing of football coach Clay Helton and subsequent hiring of Lincoln Riley away from Oklahoma last year. The move produced immediate results: USC went from 4-8 to 11-3 and was one win away from the College Football Playoff while boasting the Heisman Trophy winner Caleb Williams. This year's team is expected to compete for a CFP spot again with Williams under center.

But perhaps the more consequential decision ushered under Bohn's management was the orchestrating of USC's move from the Pac-12 to the Big Ten alongside UCLA. The sport-altering move, which was announced last year and will go into effect next year, not only put USC in a conference alongside Michigan and Ohio State but also allowed it to be part of a seven-year, $7 billion media rights deal between the Big Ten and broadcasters Fox and CBS.

«Over the last four years, the USC athletics department has transformed into a