I think it's highly unlikely that lightning strikes twice at Indiana. Cignetti may be a magician and bring long term improvement to what I believe is a historically bad program. However, in terms of the "apex" of his career, he probably should have retired and gone into doing color commentary on gameday and keeping "the mystic" alive. The fact that he kept the secret sauce to coaching perfection hidden for 63 years is the kind of fairy tale that fans love to swallow.
I think that the LSU, Alabama, Texas, Ohio State, Oregon, USC, ND, Oklahoma, Georgia types will continue to rule "college" football because they will spend in both high school recruiting and the portal.
As in the past, every decade or so an Auburn will emerge (they have deep pockets) and run the table.
Superior talent, complimented by excellent coaching is still the formula. Lot's of schools like the one's I mentioned above, fit that description. 8 or 9 times in 10 they will be in the mix. Generally speaking (as the old coach would say) you don't make chicken salad with chicken s$$$.