While half the country is already deep into its schedule, the Big Ten officially kicks off its conference slate this weekend.

In the fourth installment of a five-part preview series looking at the Power 5 conferences, theScore examines seven questions heading into Big Ten action.

Can Ohio State be stopped?

Not by anyone in the Big Ten. The class of the conference will once again be borderline unstoppable on both sides of the ball. Most teams would be crippled after losing JK Dobbins, Chase Young, Jeffrey Okudah, and Damon Arnette, but head coach Ryan Day just reloaded with another top recruiting class.

There's talent all over the field, but the main attraction in Columbus is once again Justin Fields. The Ohio State quarterback is coming off a season with an insane 41 touchdown passes versus just three interceptions. He has plenty of ground to make up, but don't be shocked if Fields is one of the last players standing for the Heisman Trophy.

The schedule is very favorable with Nebraska and Illinois representing the cross-division opponents, and the rivalry game with Michigan returns to the Horseshoe this year. Another Big Ten title and spot in the College Football Playoff seems a near certainty at this point.

Is Joe Milton the answer for Michigan?

Shea Patterson is gone. Dylan McCaffrey has opted to transfer. Michigan is Joe Milton's team now. The 6-foot-5, 250-pounder gives Jim Harbaugh a presence at quarterback he hasn't seen in the collegiate ranks since he had Andrew Luck at Stanford. While Milton may lack polish, the physical skills are there in spades, and Harbaugh has a track record in getting strong production from his quarterbacks.

The Wolverines have struggled to keep up with Ohio State's explosive offense in recent years, but Milton could provide the spark to keep the rivalry game close. Will it be enough to see Harbaugh get over the hump and challenge for the East title? Probably not.