Selective fairness thenYou want fair, have a flat wage and transfer cap. The big clubs will be rolling in money, their share prices will increase and they could spend the money fixing their leaky roofs. But be honest, fair competition is not what you want, you want to return to the previous era where a club had a player and you said, we will take him. You want to get back to winning everything and pretending it's fair because it's you not them winning.
Maybe we can cap all attendances at the bottom club's ground size to be fair
cap sponsorship at the bottom clubs income
Change the really unfair TV money payout to a flat fee for every club
Implement a draft so the bottom clubs each season can take a player each from the top clubs for free, to be fair
this is the thing competitive sport isn't supposed to be fair, go watch the NFL if you want a "fair league", Fairness is just an excuse for blatant corruption and cheating.