Big Ten power rankings: Sorting through 18 teams as conference play starts in full

There are a few teams we think we already know plenty about: Michigan, USC and Illinois have already played multiple ranked opponents. There are others we know next to nothing about, including that one in Columbus that’s supposed to be the top team in this league. But with non-conference play at last over and Big Ten play starting in full this Saturday, we’ll be able to do a lot less guessing ...