All of them?
Like did the NHL not change the game because teams that trapped the life out of the game became too successful? Did the NBA not change the game because bully ball was unattractive and fans didn't like watching it? Or move back the three point line multiple occasions because the shot was too easy? Is MLB not in the process if trying to change the game from pitchers throwing the ball as hard as they can all the time because it leads to lots of strikeouts which make the game less appealing to the fans?
Seriously, is there any sport at all, especially the team sports, that HASN'T made changes when something in the game becomes too successful?