This is 100% about money. This is not like Wisconsin deciding to invest in the program in the Alvarez era. That might as well be 1950 at this point. Sure, getting some better paid coordinators would help, but it's players we need. Teams that can't invest in paying players are going to continue to fall behind. (and Wisconsin doesn't have very good NIL either).
Where the lack of investment for decades hurts is we didn't build a strong fan base who will pony up to pay for a good team (or an administration that will fund NIL under the table). And most notably, we don't have any singular whales who are mega-fans and will bankroll the team. Texas Tech has what, a $50 million payroll for football players?
The Gophers are right where they would be expected to be. They've won the games they were expected to (except Cal) and lost the games they were expected to (except Nebraska).