I only ask because wikipedia says he didn't play because of a hamstring injury. Maybe the coaches thought 70% Bohanon was worse than 100% healthy Shapen.
Gerry Bohanon (born November 26, 1999) is an American football quarterback for the BYU Cougars who previously played for the South Florida Bulls and the Baylor Bears. High school career Bohanon attended Earle High School in Earle, Arkansas. As a senior in 2017, he passed for 2,675 yards and 34...
https://en.wikipedia.org/wiki/Gerry_Bohanon