Robert J. (Bob) Greene, PhD, SHRM-SCP, SPHR, GPHR, CCP, CBP, GRP is the CEO of Reward Systems, Inc. and a faculty member for DePaul U. in their MSHR and MBA degree programs. He has over thirty years of experience in industry and consulting and has published over 100 articles and book chapters, as well as the book "Rewarding Performance: Guiding Principles; Custom Strategies." He was a principal designer of the PHR and SPHR certifications for SHRM and the CCP and GRP certifications for World at Work. He is a member of SHRM's Special Expertise Panel on HR Disciplines and speaks and teaches globally.