It seems like Freeman and Denbrock have been able to raise the level of the QB play throughout the season. (Some of your might disagree.) Although CJ didn't have his best game, the growth from game one has been significant. Leonard improved significantly into the playoffs - I would argue, mainly because Denbrock transitioned the offense towards his strengths. Obviously, the play calling at times is infuriating, but I do see a huge QB growth happening compared to yesteryear.
Previous posts were mentioning the highly rated QBs who struggled at ND or regressed in the past and the list is long:
Pyne
Wimbush
Golson
Kiser
Zaire
Jurkovec
Crist
Hendrix
Kiel