Mark is an advisor, consultant, and coach to CEOs and senior leaders. He helps executives, teams, and organizations overcome the hurdles related to business and organizational change, diverse personalities and complex situations, and the challenges and stalls that are part of the normal cadence of careers. A contributor to The Harvard Business Review and Forbes, Mark’s books include What Happens Now?, which addresses the impediments senior leaders inevitably face and equips readers with tools to overcome them. Mark’s clients include American Express, Citibank, Google, Moody’s, NBCUniversal, Sony, Tory Burch, and elite consulting and private equity firms. Mark spent a decade in global leadership roles with Booz Allen Hamilton and Korn/Ferry. He taught at Harvard University, where he earned his Ph.D. He graduated with honors from the College of the Holy Cross. He has traveled, taught, and worked in more than 60 countries around the world.