FILE - Iowa State running back Jirehl Brock (21) runs from TCU linebacker Shadrach Banks (19) during a 40-yard touchdown run in the first half an NCAA college football game, Friday, Nov. 26, 2021, in Ames, Iowa. Jirehl Brock arrived at Iowa State as a four-star recruit ranked as the nation's 11th-best running back prospect, and for three seasons he waited his turn behind Breece Hall. Such patience is rare nowadays with the transfer portal readily available to any player looking to bolt to another school where he can get on the field sooner.(AP Photo/Charlie Neibergall, Fo;e)

FILE - Iowa State running back Jirehl Brock (21) is tackled by Clemson linebacker LaVonta Bentley (42) after rushing for yardage during the second half of the Cheez-It Bowl NCAA college football game, Wednesday, Dec. 29, 2021, in Orlando, Fla. Jirehl Brock arrived at Iowa State as a four-star recruit ranked as the nation's 11th-best running back prospect, and for three seasons he waited his turn behind Breece Hall. Such patience is rare nowadays with the transfer portal readily available to any player looking to bolt to another school where he can get on the field sooner. (AP Photo/Phelan M. Ebenhack, File)