Sam McKewon was on TBL today, and made a good comment about Nebraska just having physical superiority against 3 of the 4 opponents so far. That superiority is not only S&C, but simply having better players and more of them, and that enables Nebraska to take control of those games in the 2nd half. He notes that last season, Riley and his staff struggled to do that. They didn't appreciate the pure physical advantage (through recruiting and talent) that NU is going to have over a number of opponents. The coaches were too caught up in the scheme and matchups. Sometimes, the coaches need to think "If we keep doing what we are doing for 4 quarters, eventually we are going to beat this team up", and that's what has happened.
I'm not trying to poo-poo what Phillip is doing with the S&C, because I think he is doing a great job. But, Nebraska is a program that should be able to recruit a far number of better players where they have a big talent advantage over half of the teams in conference and they should be able to enforce their will and get the win through 4 quarters of play.