Sadly the premier league is not sustainable anymore in its current format, the top 3 (potential shift in those top 3 to be fair) are getting bigger and the bottom 13 are getting smaller. You look at Fulham, Blackburn etc who had money to spend and simply do not have the funds they once had. Likewise with Scottish league, yes R&C always win it but none of them have the money and cannot afford lower premiership wages at present. Barc and Madrid are heavily government backed which sometimes seems to be a bottomless pit but there are huge gulfs between those two and the rest of the league, in the past you have Valencia, Deportivo, Atletico etc who were close but their squads just cannot compete.
Is a super league the way to go?? Lets cut them out of the league completely so all clubs can manage on lower funds and bring football back to normality.