FILE - In this Tuesday, Aug. 6, 2019, file photo, Oklahoma State wide receiver Tylan Wallace (2) catches a pass during the NCAA college football team's practice in Stillwater Okla. Wallace was a Biletnikoff Award finalist last season after catching 86 passes for 1,491 yards and 12 touchdowns. (AP Photo/Sue Ogrocki, File)

FILE - In this Thursday, Aug. 1, 2019 file photo, Oklahoma State quarterbacks Dru Brown, left, and Spencer Sanders, right, listen to instructions during NCAA college football practice in Stillwater, Okla. (AP Photo/Sue Ogrocki, File)

FILE - In this Tuesday, Aug. 6, 2019, file photo, Oklahoma State's Sean Gleeson, center, offensive coordinator/quarterbacks coach, runs a drill with quarterback Dru Brown (6) as quarterbacks Brendan Costello (9) and Spencer Sanders (3) look on during the NCAA college football team's practice in Stillwater Okla. Gleeson, the new offensive coordinator, was offensive coordinator for a Princeton squad that went undefeated in 2018. (AP Photo/Sue Ogrocki, File)

Oklahoma State head coach Mike Gundy during an NCAA college football practice in Stillwater Okla., Tuesday, Aug. 6, 2019. (AP Photo/Sue Ogrocki)

FILE - In this Saturday, Aug. 3, 2019, file photo, Oklahoma State quarterbacks Spencer Sanders, left, and Dru Brown, right, pose for a photo during the NCAA college football team's media day in Stillwater Okla. Oklahoma State coach Mike Gundy says he considers both capable of starting. (AP Photo/Sue Ogrocki, File)