Obviously it would be nice.
Book needs to get back to being extremely accurate like he was in 2018. That's a lot on him, a lot on the OL, and a lot on the system.
Book needs an offensive system that stresses him pushing the ball down the field more and a system that puts the WR's in a lot of one on one situations which are extremely favorable in modern day football, especially against college DB's.
Book needs to be a student of the offense and game and is able to get in and out of the right plays that put his guys in a position to succeed.
Book needs to become more comfortable in the pocket and realize how to buy time without ducking and running.
If he goes those things, Book will be a really good college QB and with the talent ND has on the field, they will score a lot of points against the majority of teams and it will give them a much better chance to score against the elite teams.