One could say that the offense will go as far as the line will take it, but that's not entirely accurate since there is so much room for growth at QB, RB and WR. It's still the most important element though. A powerful line will help Golson and the others get where they need to be a lot faster. Conversely, a weak line will make everyone look bad.
Some teams are blessed with an exceptional athlete at QB, who overcomes other weaknesses and creates a lot of positive plays. Others like Bama are well structured and balanced with less reliance on a single playmaker. I would like for ND to have a little bit of both elements - balance, strength, and a plus QB to make life difficult for defenses.