Tbf mate, you don’t need success. You just need to offer something different.
A brand new stadium will almost certainly add 20,000 to their crowds and therefore they will be looking at c45,000 crowds. That alone should be enough to kick them on.
I know people will say “yeah but that still leaves 17,000 empty seats” but I suspect they will already be planning for that.
They’ve already said that the stadium will be the steepest in the country and therefore the idea will be to pack out the lower tiers and then cover the top tiers.
There’s a lot of plastic fans in Birmingham mind mate. If they can stop bellends from supporting Liverpool etc, that will be a start