We obviously had a game plan that played into Chubba's very modest talents, with a run-heavy game, safe outlet passes and a green light to scramble. We also had a defensive game plan to shut down Minnesota's running game. Both worked great for one half of football. Fleck and staff made the right halftime adjustment. Nebraska didn't.
There's a reason why we "go away from what works." It's because opposing teams learn and adjust.
Hell, Minnesota dumped the most experienced QB in the Big 10 for a freshman, and as soon as the passing game got clicking, the running game broke open.