Pulling all-nighters is nothing new for Shaygan Kheradpir. In grad school, he recalls, "Our brains were going all the time." Now CIO of Verizon, he runs his more than 7,000-person IT organization much like a college lab, a fraternity of smart people who welcome the crazy hours. Equally demanding of himself, he seems to have taken Verizon's corporate slogan—"We never stop working for you"—as his personal motto...