Baseball is most married to its past, which damns it in this way. MLB could combat the fact that the best method to win games seems to vary greatly from the best game to watch, but they won't. Baseball evolves slowly, because of its marriage to the past.
The 3-batter minimum for relievers is great, but minor.
Analytics has revealed some effective strategies that are also boring. This doesn't have to damage the sport, but it has and probably will, going forward.