We are still short on the clarity, but there was a ton of carnage in the middle:
Alabama's temporarily validating win against Penn State looks like the kind of thing that a lot of teams could pull off and they fall behind LSU, which paired its Oregon win with one over Mississippi State. Oklahoma flies to the head of the class on the assumption that @FSU is the best win anyone's acquired this year.
Lower down it's not that surprising until you get to #14, whereupon five of the next 11 teams were booted from the poll. I elect to shove a couple of teams who are playing well and have good wins above Arkansas and South Carolina. South Carolina in particular appears to be living on borrowed time after being out-played by Georgia and scraping by Navy.
At the bottom you will find Michigan, mostly because I ran out of teams I could plausibly insert if you think Notre Dame is going to end up around 8-4 or 9-3. I regret having to do this.