Upon the death of his father in 1982, he was named to the position of rosh yeshiva together with Rabbi Dovid Schustal, Rabbi Yerucham Olshin, and Rabbi Yisroel Neuman, who are all married to grandchildren of Rabbi Aharon Kotler. At that time, BMG had an enrollment of some 800 students. Since then, enrollment has grown more than 800% to a current size of around 6,300 students. To manage the huge number of enrolled pupils, the four roshei yeshiva divide up the times they deliver "shiurim" (Torah lectures) in the various "battei medrash" (study halls) on campus. They have also appointed dozens of "roshei chabura" (heads of small study groups) to take responsibility for smaller groups of students.