I want to know the answer to the following question:
Why did President Levin believe there were so many Yale alumni presidential candidates?
All the background I'm provided with is that "Richard H. Brodhead, former dean of Yale College and now president of Duke University, stated: "We do give very significant attention to orientation to the community in our admissions, and there is a very strong tradition of volunteerism at Yale."". Is that enough to answer the question?