World-Herald staff writer Rich Kaipust takes a look at five things we learned about Nebraska during Saturday’s games and five things we still don’t know.

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FIVE THINGS WE LEARNED

1. No surprise, but I-back Rex Burkhead was able to jump right back into the offense and seemingly hit his stride right away.

2. Ameer Abdullah still offers the same explosiveness in the return game that he gave the Huskers a year ago.

3. The Husker defense has the ability to create some turnovers, forcing three in the first half after coming up with only four in the first three games.

4. If Nebraska is going to play Football Championship Subdivision teams, it’s probably better to find some higher on the food chain.

5. Nebraska is set on going into Big Ten play with a seven-man rotation on the offensive line and only one substitute, Andrew Rodriguez, who really plays a significant amount.

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FIVE THINGS WE STILL DON’T KNOW

1. What does Nebraska squeeze out of this game as far as getting the work and preparation it needed for Wisconsin next weekend?

2. Can Eric Martin continue to give the Nebraska defense some of the spark that he’s created the past two weeks?

3. Is Ron Kellogg III ready for duty when it matters if something happens to NU starting quarterback Taylor Martinez?

4. Is Nebraska ready to play its three-linebacker, base defense now that the Huskers will finally see some offenses with fullbacks and tight ends?

5. Where does Nebraska fit in the Legends Division race now that everyone except Northwestern has absorbed nonconference bruises?