anymore. Recruiting rankings don't matter much because the highly rated guys who don't play much are no longer stuck on the same team for 2+ years. They all end up transferring. The top FCS guys end up transferring. The talent is much more balanced than ever before.
Also, BYU was a few plays away from winning 8 games last year, and possibly 9 if we win the bowl game that didn't happen. Yet we are anchored down because we were a 5-win team last season, and that 5-7 season never fully goes away in these broken ranking systems.
Teams can make huge jumps and huge declines more than ever before. Not only is what BYU and Indiana are doing unexpected, but what Florida State is doing this season is almost unprecedented. The turnarounds can go both ways. We are approaching the parity stage of college football and nobody knows what to do with it. A couple years ago Colorado replaced almost its entire roster. I realize that they didn't have a great season, but if they had, I'm guessing they would've still looked worse to some of the ranking metrics.
It is a new era of college football and Vegas has lost millions this season on teams like BYU because they don't know what to do with it. Nobody knows what will happen this season. Oregon struggled with Idaho and barely beat Boise State. Everyone has flaws. Fortunately the 12-team playoff has come just in time to crown a champion.