The BigTen is arguably the best league in the country so far with neither of the two losses (Michigan State to Kansas and Illinois to Georgetown) being an upset, compared to 5-10 good wins so far, depending on your standard for a good win. Meanwhile, quite a few power-conference teams have already suffered questionable-at-best losses (Baylor, Notre Dame, Boston College, Texas A&M, Oklahoma State, California, South Carolina, Wichita, Washington State).
10 teams are in the Kenpom top 40 while Minnesota and Northwestern are 49 and 50, Illinois at 77, and Rutgers at 118. That's a predictive ranking system, of course, as opposed to a results-based one, but even so, it's a good indicator. In looking at Michigan's schedule again, I can see them winning the conference but just going 14-6 or 15-5.
Of course, there are still a lot of non-con games left, including most of the toughest ones, but it's a very good start.