Bob Sproull, a senior business consultant at Novaces, is a lean Six Sigma Master Black Belt and a theory of constraints Jonah. Sproull has served as a vice president of quality, engineering, and continuous improvement for two manufacturing companies and has an extensive consulting background in healthcare, manufacturing, and MRO, and focuses on teaching companies how to maximize profitability through lean, Six Sigma, and constraints management. He is the author of three books, including The Ultimate Improvement Cycle: Maximizing Profits Through the Integration of Lean, Six Sigma, and the Theory of Constraints (Productivity Press, 2009) and with co-author Bruce Nelson, Epiphanized: Integrating Theory of Constraints, Lean and Six Sigma (North River Press, 2012).