William C. Byham, PhD, is chairman and CEO of Development Dimensions International. He founded the company 40 years ago to help organizations make better hiring, pro- motion, and management decisions, and the firm continues to be internationally renowned in human resources consulting. He has forged important innovations in HR that have had an impact on organizations worldwide. As a best-selling author, he continues to write books and articles and deliver speeches on important management advancements and how they are affecting businesses.