If you are going to mention Steve Spurrier and how his philosophies apply to the 2020 Tennessee Vols, it would be how he handled QB's.
He....
A) Believed that they were like any other position on the field and should be benched if they weren't doing their job.
B) The nature of college football means you can't lose. If a player is struggling, you can't progressively get better as the year goes along and gear up for a playoff run. You have to win. So, if a player is struggling, you don't have the luxury of waiting for him to figure it out. You lose once and you might be out of the national title hunt, not win the SEC, not win the division, etc.
C) If they were too mentally fragile that they would be broken by being benched, they weren't going to be mentally tough enough to get it done anyway.