Minnesota Vikings chief operating officer Kevin Warren talks to reporters after being named Big Ten Conference Commissioner during a news conference Tuesday, June 4, 2019, in Rosemont, Ill. (AP Photo/Charles Rex Arbogast)

Minnesota Vikings chief operating officer Kevin Warren talks to reporters after being named Big Ten Conference Commissioner during a news conference Tuesday, June 4, 2019, in Rosemont, Ill. (AP Photo/Charles Rex Arbogast)

Minnesota Vikings chief operating officer Kevin Warren talks to reporters after being named Big Ten Conference Commissioner during a news conference Tuesday, June 4, 2019, in Rosemont, Ill. (AP Photo/Charles Rex Arbogast)

Minnesota Vikings chief operating officer Kevin Warren talks to reporters after being named Big Ten Conference Commissioner during a news conference Tuesday, June 4, 2019, in Rosemont, Ill. (AP Photo/Charles Rex Arbogast)

Minnesota Vikings chief operating officer Kevin Warren talks to reporters after being named Big Ten Conference Commissioner during a news conference Tuesday, June 4, 2019, in Rosemont, Ill. (AP Photo/Charles Rex Arbogast)

FILE - In this Dec. 27, 2015, file photo, Minnesota Vikings chief operating officer Kevin Warren poses for a photo before an NFL football game against the New York Giants, in Minneapolis. The Big Ten hired Minnesota Vikings executive Kevin Warren as its new commissioner Tuesday, June 4, 2019, bringing on a former college basketball player and sports agent with a law degree from Notre Dame to replace Jim Delany and become the first black commissioner of a Power Five conference. (AP Photo/Ann Heisenfelt, File)