With respect, because I value you as a long-time fan, this is exactly the logic that got us where we are: “No, no, no… you don’t understand. THIS time things will be different.”
FWIW, I used to agree with you. When Carmody was fired, I said it was a pointless move, because there were three major factors holding our program back that I saw as impossible to overcome if they were not resolved:
1. NU's academic standards for athletes
2. NU's utter refusal to invest anything more than the bare minimum into the basketball program
3. NU's reputation as the only major conference school to never make the tournament
Given all those issues, why make a move? Carmody got us to 4 NITs in 5 years, he clearly found some level of success, why not just let him keep trying? It's not like anyone else can do any better. We've had Hall of Fame coaches fail here, after all.
Well, they fired Carmody anyway and they hired Collins. And he went out, with factors 1 and 3 still firmly in place and only a set of blueprints for changing factor 2, and recruited a group of players that formed the core of NU's first-ever tournament team. While that was happening, the university finally invested hundreds of millions of dollars into a total overhaul of basketball facilities.
So now, even though Collins has been unable to achieve consistent success, two of the three factors holding the program back are completely off the table. All that's left are the academic standards. (NIL admittedly may become another major factor, but that's still in its early days.) And while I agree the standards are a significant issue, and I would like to see NU relax them, we've never hired a coach who didn't have to deal with horrendous facilities or a "cursed" reputation. The next coach will have a clean slate and new opportunities denied to every single one of his predecessors. Given that, I see no reason to believe that making a change is pointless and nothing is going to change.
Think about it this way: the last two coaches we hired each elevated the program to unprecedented (in the modern era) levels of success despite massive institutional obstacles. And now we have gorgeous facilities and the curse is over. Why shouldn't we think more improvement is possible from the next hire?