Charles A. Liedtke, Ph.D. is the President of Strategic Improvement Systems, LLC, a management consulting company designed to assist leaders in improving the performance of their organization from a strategic perspective. Charles helps his clients in the areas of Strategy, Quality, Analytics, Improvement, and Innovation. He has worked with organizations worldwide including Fortune 500 companies, privately held companies, non-profit organizations, health care organizations, and government entities. Charles earned a Ph.D. in Business, an M.B.A., and a Ph.D. minor in Statistics from the University of Wisconsin-Madison; an M.S. degree in Statistics from Iowa State University; and a B.S. degree in Economics from South Dakota State University.