I used to love the new league drawing system because it increased competition within leagues and made them much more fun. But this also made qualities of different leagues in same club level varied greatly. This is not fair to manager put effort or even cash to build strong team.
Like in real world, I think teams in strong league should be able to attract more sponsors. The league prize can also be higher. Besides a T11 world club team ranking system can help to recognize better team. Furthermore, even a qualifying round for Champion League can be introduced. This can be competed by teams from low quality leagues and 4th ranking team in high quality leagues before entering champion league group stage.