Good lord guys. I'll say this and then I'll leave it alone since this is morphing into something completely different.
I'm not saying that ND's offense is doomed or that guys like ESB, Hunter, or Sanders can not be productive in a spread offense. I'm not saying that one of those guys can't individually step up and have a great year.
All that I'm saying is that an ALL-AMERICAN WR like Fuller is hard to replace. To expect that to be done by a guy like ESB who has......less than 5 career catches (?), seems unlikely. Will Fuller brought a different dimension to this offense. You can say he was a "one trick pony" all you'd like but in my opinion, that's what made his production all the more impressive. Teams knew what he was going to do and he did it anyway. He was dominant at the position and that won't be replaced this year by anyone.
I expect the running game and the intermediate passing game to be successful. There's a lot of talent on offense coming back and I fully expect ND to be productive on that side of the ball.