Their game with Michigan will be highly interesting. Not because it will neccesarily be some big test, Michigan is very mid and Indiana SHOULD win (obviously if they don't it's another story overall). But even if they win by like 10 points, watching how their offense performs vs that defense, which is at a totally different level of talent than any unit they've handled all year, will be interesting. If they win like 21-10 it makes me question if they have the horses to compete with the top teams once they face them. If they drop 30 and 400+ yards on that defense and win like 30-20 then call me a believer, because they can score on truly anybody then.
Of course, they play OSU the next week so we could just wait and watch that one.