Big Ten's Kevin Warren is the 1st African-American commissioner of a Power 5 conference Posted Jun 18, 2019 Kevin Warren, 55, introduced himself to the Big Ten at a news conference in Rosemont as a man with an impressive resume and an inspiring biography. He comes to the position after 14 years working for the Minnesota Vikings, the last four as chief operating officer. Warren will move into a transitional role Sept. 16, working alongside Jim Delany. (Chicago Tribune)