I understand what you're getting at here, but the fans who love seeing Steve fail and use this ideology are practically in a win win scenario lol..
If Steve does bad next year, he gets fired, and it's apparent he's not a good coach for this level. You win. If Steve turns it around, everyone not supporting him currently will say "See! All he had to do was be a better coach and it's working!" And you win again because you will claim he wasn't a good coach but magically became one.
If Iowa State does well next year, it will be because Steve made changes where they needed to be made and made conscious efforts to do so. Bad coaches don't do that. Bad coaches stay exactly where they are because they're unable to do the things they need to succeed, even if that means tearing something down to build it back up (what Steve is doing).