Deborah J. Nightingale, formerly Professor of the Practice of Aeronautics and Engineering Systems and Director of the Sociotechnical Systems Research Center at MIT, is an independent consultant and coauthor of Lean Enterprise Value: Insights from MIT's Lean Aerospace Initiative and Beyond the Lean Revolution: Achieving Successful and Sustainable Enterprise Transformation.

Donna H. Rhodes is Senior Lecturer in Engineering Systems at MIT and Principal Research Scientist in the Sociotechnical Systems Research Center. She is Director of MIT's Systems Engineering Advancement Research Initiative and Sociotechnical Systems Research Initiative.