When he was only 27, Reb Chaim Soloveitchik replaced his father-in-law as Rosh Yeshiva of Volozhin. With the Netziv, he brought the yeshiva to its height. Rabbi Wein shows how the strengths of this extraordinary pair fit each other like a glove. While the Netziv was steadiness and hard work, Reb Chaim was genius - an innovative thinker who paved a new path for future generations.