This is an interesting read from 1982 about TX high school RB legend Ken Hall. It discusses how Bryant considered the way he used Hall to be his biggest coaching mistake. He speculated the Aggies would have been National Champs had he not run Hall off the team by misusing him. (We can wonder if John David Crow might have been the FB blocking for Heisman Trophy winning HB Ken Hall on their way to a Natty, had Bryant made a different decision.)
https://www.si.com/vault/1982/09/27/625010/whatever-happened-to-the-sugar-land-express
https://www.si.com/vault/1982/09/27/625010/whatever-happened-to-the-sugar-land-express