David Van Rooy is the author of "Trajectory: 7 Career Strategies to Take You From Where You Are to Where You Want to Be" (2014, AMACOM). He explores the concept of career trajectory and how you can take advantage of your skills and the possibilities around you to reach your goals. He is currently Senior Director, Global Leadership Development at Walmart. He previously held roles in International HR and was also responsible for the worlds largest performance management and employee engagement programs at Walmart, covering approximately 2.2 million employees globally. Before Walmart, David held leadership roles at Marriott International and Burger King Corporation. He has a Ph.D. in Industrial and Organizational Psychology and has published over 20 peer reviewed scientific business articles and book chapters.