By KEITH JENKINS

AP Sports Writer

MADISON, Wis. — Mark Dantonio made some changes on the offensive side of the ball during the offseason.

The 13th-year Michigan State coach reassigned all five offensive assistants from 2018. Dantonio promoted Brad Salem from quarterbacks coach to offensive coordinator, while stripping Dave Warner and Jim Bollman of their co-offensive coordinator duties.

The retooled Spartans (4-2, 2-1 Big Ten) are coming off a 24-point loss to No. 4 Ohio State and they get no relief today with a trip to No. 8 Wisconsin (5-0, 2-0), which boasts the top-ranked defense in the country.

“I think they operate very well together,” Dantonio said of the Badgers defenders. “They are very well tied together. You can tell it’s team defense. They have a lot of guys making a lot of plays and they are bringing people from every direction at times.”

Wisconsin leads the FBS in total defense (178.6 yards per game), scoring defense (5.8 points per game), passing defense (131.0 ypg) and third-down defense (.159) while ranking second in rushing defense (47.6 ypg).

Senior linebacker Zack Baun had three sacks for the Badgers last week in a win against Kent State to bring his season total to six, which ties for sixth most in the FBS.

“We haven’t even reached our goals yet,” senior linebacker Chris Orr said. “We haven’t played the perfect game yet. That’s what the main goal is. We kind of don’t talk about more than just one week during the season, so right now we’re just focused on whatever we can do to demolish any plans that Michigan State’s offense has.”