February 28, 2012 by Michael Stacy
La Vista Long before Mary Ann O'Brien actually was a CEO, she signed her name like one. Today, O'Brien is the CEO of Omaha-based OBI Creative, an ad agency that, per company literature "is hard-wired for innovation." But O'Brien has harbored big ambitions since she was a little girl growing up in rural Spencer, Iowa. "I've been signing my name: 'Mary Ann O'Brien - CEO, O'Brien Industries, New York, New York, 10069' since I was in the third grade," … read more