>>>rav shach received a lot of criticism from brisk for changing the yeshiva world’s policy
I’m not going to post it here but the seven words from gemora (a unrelated and non haskafa sugya ) that Rav Chaim Shumelvitz quoted in response after being told that he is being criticized in Brisk for not going along with their view on the state of Israel is something you should really know if you are concerned about that criticism