Lynn Good has had many mentors throughout her career — but few of them were women. "So I'm generationally on the early part of the ascent of women into leadership roles," the Duke Energy president and CEO says. Pat Sullivan/AP hide caption

itoggle caption Pat Sullivan/AP

Andrew Mason, a co-founder of Groupon, has been ousted by the company's board, one day after a disappointing earnings report. Here, he's seen at a 2012 conference in Germany. Johannes Simon/Getty Images hide caption

itoggle caption Johannes Simon/Getty Images