...it was no secret around the football offices that neither Grimes nor then offensive-consultant Aaron Roderick (who would later be named quarterbacks coach) were enthralled with the odds-on favorite to be the 2018 starter — Tanner Mangum

Mangum was just awful in 2017 and wasn't much better in 2018. He seemed pretty good as a freshman in 2015, but the miracle wins @Nebraska and vs Boise State probably got him a longer leash than he deserved.