Iowa State head coach Matt Campbell reacts during the first half of an NCAA college football game against Texas, Friday, Nov. 27, 2020, in Austin, Texas. (AP Photo/Eric Gay)

This undated photo provided by Iowa State Athletics Communications shows Iowa NCAA college football coach Jim Walden. .Walden, now 82, is retired in Idaho and watches every Iowa State game on television. He's been back to Ames for two games since Matt Campbell took over in 2016 but has never had a chance to talk to him. (Iowa State Athletics Communications via AP)

Iowa State head coach Matt Campbell stands on the field before an NCAA college football game against Kansas State, Saturday, Nov. 21, 2020, in Ames, Iowa. (AP Photo/Charlie Neibergall)

Iowa State quarterback Brock Purdy (15) and offensive lineman Derek Schweiger (64) celebrate a touchdown against Texas during the second half of an NCAA college football game, Friday, Nov. 27, 2020, in Austin, Texas. (AP Photo/Eric Gay)

Iowa State players and coaches storm the field after their win over Texas in an NCAA college football game, Friday, Nov. 27, 2020, in Austin, Texas. (AP Photo/Eric Gay)