...with QB's that low on the depth chart"
USU won 10 games and a bowl game in 2014. They had to play the 4th QB string half of the season. The 5th string even played a few snaps. And that's the 4th or 5th string at USU, which one would think is different than the 4th or 5th string at BYU or a P5 school.
Doesn't change anything. Just disproving your point.