Until the old method is broken. The Red Sox steam rolled through the league, and it wasn't because of stacking pitchers or using openers.
Every way works if you do it well. KC broke two huge trends when they won it.Last in the league in homers but tough to strike out and mediocre starters with lights out bull pen.San Fran in their every other season WS streak embraced pitch to contact but did it very well.Boston gave up over 4 runs per game to Houston and nearly that to the Dodgers. Many years that is not enough to get the job done but Boston also had a great offense.In fact, statistically, Price was 26th in the league in ERA and Porcello was 45th. Sale did not do great in the Division or World Series. Boston maybe doesn't win if Price doesn't pitch way beyond his past playoff performances. Home field advantage helps but basically, make the playoffs and get hot is the best formula. Of course, this is aided by having great starting pitchers.Every method works if you have good players playing well.