Small addition to cantoresq’s words, I hope he doesn’t mind.
I find it odd that someone from the yeshiva world would be unfamiliar with the Sridei Eish. According to Rav Yaakov Kaminetsky zt”l, Rav Y. Y. Weinberger was the unparalleled iluy of the Slabodka Yeshiva when the Alter ruled there, and was expected to become the leader of European Jewry. It’s less important why this did not come to pass, but his legacy of tzidkus, yashrus, genius, and chidushei torah are an inspiration to lovers of Torah learning many years after his death.