I liked it better when teams represented the style of play of the country they are based on. Now every team is full of foreign managers and foreign players. I think the foreign player limit maintained a sense of identity associated with each club. It forces you to develop your own talent, and the fans are always going to be more into it when players are from the same country as them. Now we rarely ever see teams develop talent.
The “centralization” of dominant teams. Now it’s always Bayern, Barcelona, Real Madrid or Man city who 9 times out of 10 wins their respective league. Back in 2000s teams like Valencia, As Roma, Lazio, Parma, Deportivo, Werder Bremen, Zenit Cska Moskva and on won their domestic league and even challenged out in Europe for the UEFA cup or champions league.
Now it’s always the same.
Tbh if Valencia wasnt lead by an idiot of a President they could easily be where Atletico Madrid is right now.