Imagine this scenario:
Logan Smothers starts and Adrian Martinez is in street clothes. The game plays out the same... another close loss. Frost comes out afterwards and says that Martinez probably could have played, but they wanted to give him an extra week to heal.
Can you imagine the outcry?
"Frost sacrificed a chance at bowl game."
"Why would you start a freshman when your 4-year starter could've played?"
"With the bye week coming up, they should have played Martinez and at least tried to win the game."
He's in a no-win situation. No matter what he does, you guys will be up his butt.