The Lean Manager
Jul 29, 2009· Michael Ballé. Michael Ballé, PhD, is a lean management practitioner, business writer, and author.He is co-author of The Gold Mine Trilogy, The Lean Strategy, and The Lean Sensei.. For over 25 years, he has studied first-hand lean transformations, helping companies and people in fields such as manufacturing, engineering, construction, services, and healthcare make the transition to different ...