Things I know, and things I think I know:
As Troy Walters spoke to reporters last week, Nebraska's giant question mark at quarterback ran through my cranium.
"Some offenses, they react to the defense," the new Husker offensive coordinator said confidently. "We're going to make the defense react to us."
Walters, of course, can back up his big talk, as he helped guide a Central Florida offense that in 2017 led the nation in scoring (48.2 points per game) and ranked fifth in total offense (530.5 yards). The Knights finished 13-0.
"We're going to try to put stress on the defense," he said.