Your claim has to be validated not just for 3 teams but across ALL teams. It is WAY too easy to just copy recruiting work of four or 5 programs that prove they have an eye for talent. There should be a very consistent correlation between the composite recruit rankings and winning/rankings. You might expect an anomaly here and there due to great or bad coaching... but it should be relatively predictive. It isn't.
2022 College Football Team Talent Composite
According to the list above they were the 4th most talented team in the country. That wasn't just the product of one class. From 2019 through 2022, they were ranked 4th, 6th, 8th, and 1st. We also aren't talking about a team that won a disappointing 8 games. They had a losing record. Unless there were several busts in those other 3 classes... they should have been MUCH better just on talent alone.
Not all of those players are "late bloomers". They're just players who for various reasons the recruiting sites didn't like very much. Tillman is instructive. He was rated 2*. That's important because it indicates that the recruiting sites DID know about him. A 3 star rating is almost default if a P-5 school offers and especially an SEC school. They evaluated Tillman and decided he sucked. It wasn't just development either. He was big and relatively fast when signed.
It is also important to note here that the recruiting sites ALL hedge here. They limit the number of 4/5* ratings they hand out which should make it easier to not miss. Yet each year we see a LOT of 4* players who aren't very good.
LOL. It isn't just developmental players. It is players who had the talent all along and for whatever reason didn't get noticed. Some guys grow into themselves after HS. But that's not the majority of this "leveling".
Recruiting is speculative. The recruit rankings are speculative. The value of the portal is that you have a much more known commodity.
Something many don't appear to understand also is that programs are using the portal to purge their rosters. There was a lot more pressure before not to pull a guy's scholarship if they turned out not to be as good as projected. It really screwed the player over if you did it since they had to sit out even if they found a destination. Now if they're good enough they'll be picked up by someone.
Almost all of the guys UT has lost over the last two years have signed down to a lower level schools. It is very, very likely that most of them got nudged toward the portal.