James William Martin is president of Six Sigma Integration, Inc., a Lean Six Sigma consulting firm, located south of Boston. He has served as an instructor at the Providence College Graduate School of Business since 1988. He instructs courses in operations research, operations management, and economic forecasting, as well as related quantitative subjects, and counsels MBA candidates from government organizations and leading corporations. As a Six Sigma consultant and master black belt for eight years, Mr. Martin has worked with organizations in retail sales, residential and commercial service,...