The gap between elite teams and middle tier teams is definitely closer in my opinion. Elite teams are still better, but not by as much because they can't stack 4 & 5-star players anymore. Every team has less depth because if a player isn't getting playing time at elite P4, they transfer down a level to mid-P4, if a mid-P4 player isn't getting playing time, he transfers down to non-P4 FBS or FCS. We've seen that on our own team. In addition, P4 teams are attracting the best players from non-P4 FBS and FCS. Those guys want to get into a P4 school because they still have a dream they could get noticed by the NFL playing at the highest college level - Max Brosmer and Jack Henderson are examples of this.
I think a good example this year of talent spreading out at the P4 level is most pronounced at quarterback. I never remember seeing so many good quarterbacks playing in the B1G. Maybe you say it's a one year blip, but I don't think so. Kansas State had two very good quarterbacks last year, their starter, Will Howard, and their high 4-star, 2023 in-state QB recruit, Avery Johnson. In the past without the portal, Will Howard and Avery Johnson would have battled it out to start at quarterback this year and the loser would watch from the bench. Not anymore. Will Howard could feel the heat and was looking for greener pastures and found Ohio State. Ohio State's quarterback, Kyle McCord, could also feel the heat and bailed for Syracuse giving them the best QB they've had in years. Now, three schools have good QBs and Kansas State lost its once in a lifetime depth.
Same thing for Oklahoma. Dillon Gabriel is feeling heat from 5-star recruit, Jackson Arnold, so takes a bag to go to Oregon. There goes Oklahoma's stacked QB room. Now, Jackson Arnold has bombed so far this year for Oklahoma, but it's still an example of not being able to stack good players two and three deep at a traditional blue blood. Think of how much better Oklahoma is this year if Dillon Gabriel is still there? They were forced to roll the dice on the young guy and lost.
We even saw that with AK going to Rutgers. Rutgers starting QB was worse than AK last year and AK beat him out for the starting job. AK hasn't looked good for them this year, but Rutgers did increase the depth and competition in a very bad QB room. We backfilled by grabbing one of the best QBs from FCS. Without Max Brosmer, we don't have the QB chops to beat USC and almost come back to beat Michigan, two lower level blue bloods.
Indiana's stud starting QB, Kurtis Rourke, is a portal transfer from non-P4 Ohio University. Indiana could beat Michigan this year, but not if they didn't have him, and they might have a punchers chance against Ohio State if they catch them on an off day. This is only because they have an excellent player at the sport's most important position, QB, and they did NOT recruit him out of high school. Oh, and let's talk about Michigan's disaster of a QB room. Cade McNamara bailed on Michigan in 2023 to join Iowa because he knew he couldn't beat out JJ McCarthy. In years past, he would have just been depth for Michigan and would have been their starter this year. He is not a great QB, but he is decent which is a huge upgrade for Iowa this year and a huge loss for Michigan. Do we come as close to beating Michigan this year with Cade McNamara as their QB? I don't think so. Not being two and three deep hurts because recruiting mistakes and injuries are magnified!
Dang, look at Utah! They go from upper tier P4 to lower tier P4 by losing just one guy, their stud QB, Cam Rising. Now, just about everyone is in their boat, no stud QB depth.
A lot of articles have speculated that's part of the reason Nick Saban retired from Alabama. A lot of his depth was bailing to his P4 competition, parity was increasing, and it would be a while before Alabama's spoiled fan base accepted that fact and his life would be hell in the meantime. He figured I'm too old for this crap and got out when the getting was good! A few injuries, recruiting errors and/or defections stack up for the top teams and they will fall right down into the middle of the now much more competitive P4 scrum. They aren't used to that!
And lastly, don't bring up Ohio State to me. They loaded up for a one year run at the national title just like Michigan did last year. Even they admit having a team like this year's is not sustainable.