My wife and I were dumbfounded until we realized he wasn’t focused on the buildings but the students walking about. And darned if they didn’t look more like a crowd he could learn from. It turns out that their selection process has the backing of the dean of the University of Virginia’s Darden School of Business. In a blog post recently, Robert F. Bruner urged future business school candidates to consider the principle of “five friends” when choosing where to get their MBA. Bruner argued that in graduate school, you learn more from the friends around you...