FILE - In this Oct. 13, 2018, file photo, Vanderbilt head coach Derek Mason watches from the sideline in the second half of an NCAA college football game against Florida, in Nashville, Tenn. Mason knows who's starting at running back, wide receiver and tight end. Now the Vanderbilt coach has to pick his starting quarterback with the start of fall practice, the quicker the better. (AP Photo/Mark Humphrey, File)