In this photo taken Aug. 7, 2019, Nebraska quarterback Adrian Martinez (2) leaps over a player during NCAA college football preseason practice in Lincoln, Neb. Martinez, the most productive freshman quarterback in the nation last season, averaged 371 yards of total offense against West Division opponents and 295 overall. He led an offense that ranked second in the Big Ten and scored 30 points per game. (AP Photo/Nati Harnik)

FILE - In this Aug. 2, 2019, file photo, Ohio State quarterback Justin Fields runs a drill during NCAA college football practice in Columbus, Ohio. Georgia transfer Justin Fields' performance will be key to the Buckeyes’ hopes of returning to the College Football Playoff for the first time since the 2016-17 season.(AP Photo/Jay LaPrete, File)

FILE- In an April 13, 2019, file photo, Michigan head coach Jim Harbaugh walks out with players during the team's annual spring NCAA college football game in Ann Arbor, Mich. Harbaugh seems to be set up for success at Michigan in his fifth season, leading a program that is a popular choice to win the Big Ten. "That's where I would pick us," Harbaugh said. Some are predicting the Wolverines will earn a spot in the College Football Playoff to give them a chance to win a national championship for the first time since 1997. (AP Photo/Carlos Osorio, File)