Founders of Bridgeway Partners

Our Mission

Our Mission is to increase your efficacy in leading social change through applied systems thinking.

David Peter Stroh

A founder and Principal of Bridgeway Partners. He started off his career in city government and went on to co-found Innovation Associates, the pioneering consulting firm in the area of organizational learning; their work was the foundation for the international management bestseller, The Fifth Discipline.

Much of David’s work over the past 40 years has focused on enabling leaders to apply systems thinking to hone organizational strategy and achieve breakthrough, sustainable change. He has been described as a magician” andthe master at providing interesting and useful ways to look at the complexity of systems thinking” who “helped us tremendously in getting to the core issues” with “the mind of a scientist and the heart of a healer.” He is a co-creator of the website Applied Systems Thinking, a charter member of the Society for Organizational Learning, and a faculty member of the Academy for Systems Change.

David is the author of the best-selling book Systems Thinking for Social Change: A Practical Guide to Solving Complex Problems, Avoiding Unintended Consequences, and Achieving Lasting Results (Chelsea Green, 2015). Readers praise it as "an essential - and long overdue - guide to applied systems thinking" that "shows you how to enlist others in the effort" by "masterfully weaving metaphor, story, and practical tools" using "down-to-earth language."

David is also a frequent speaker who has keynoted conferences for the Council on Foundations, National Council of Nonprofits, Social Impact Exchange, Systems Thinking in Action, and others. He was a National Science Foundation Fellow at MIT, where he earned an M.A. in City Planning after graduating summa cum laude with degrees in Civil Engineering and Urban Studies from the University of Michigan.

Marilyn Paul, Ph.D.

A co-founder and Principal of Bridgeway Partners, is a workshop facilitator, speaker and coach. She helps individuals, groups and organizations find new perspectives and original solutions to persistent problems. She has a special ability in combining a focus on results with attention to individual growth and team development. Known for her powerful work in helping individuals and organizations get organized and manage their time better, Marilyn brings skills and humor to stuck situations.

Marilyn has worked in the corporate world, school systems, government, faith based organizations and health care. Her international work includes leading a management development program under the auspices of the World Health Foundation and the Israeli Defense Forces in the Gaza Strip. She has also been on the faculties of Colby College, Yale Medical School, Hebrew University School of Public Health, and the Massachusetts General Hospital School for Health Professions.

Before forming Bridgeway Partners, Marilyn was a senior consultant with Innovation Associates and then Arthur D. Little. Earlier in her career she was a senior consultant at Kaleel Jamison Consulting Group – supporting companies in creating high performing diverse organizations – and Workplace Systems – specialists in labor-management relations.

She is the author of It’s Hard to Make a Difference When You Can’t Find Your Keys (NY: Penguin Compass, 2004), which has sold nearly 200,000 copies worldwide, and the recent book An Oasis in Time (NY: Rodale, 2017) for people seeking to increase their perspective, creativity, and energy in a 24/7 world.

Marilyn has a Ph.D. from the Yale School of Organization and Management and an M.B.A. from Cornell. Her work has also appeared in a wide range of media including: National Public Radio - Morning Edition, the Chicago Tribune, the Discovery Channel, Yoga Journal and Publishers Weekly and Canadian National Television.


Professionals in our field we regularly work with.

Michael Goodman

Michael is an internationally recognized speaker, author, and practitioner in the fields of Systems Thinking, Organizational Learning, and Leadership, Michael Goodman has pioneered many innovations in the field of system dynamics that have made it more accessible to business and organizational leaders.

Michael has published widely, authoring one of the first textbooks in the field, Study Notes in Systems Dynamics, and serving as the primary contributor to the Systems Thinking chapter in the acclaimed The Fifth Discipline Fieldbook. He also led the development of a web-based course, Systems Thinking: A Language for Learning & Action. Among his international clients are British Petroleum (Britain, Germany, Australia), Saudi Aramco Oil (Saudi Arabia), World Bank (USA, Philippines), Singapore Police Force (Singapore), Hyundai Corporation (South Korea), Gas Authority of India Limited (India) and Malaysian InfoSciences (Malaysia). His work on consulting projects has included the design and delivery of training sessions, individual coaching, side-by-side work with internal resources, and the engagement of strategic leadership teams to understand complex problems and identify the leverage points critical to their resolution. He is a charter member of the System Dynamics Society, and a charter member of the Society for Organizational Learning. He holds two Master’s Degrees from the Massachusetts Institute of Technology. Michael is the Principal at Innovation Associates Organizational Learning.

Diane Johnson, Ph.D., M.Div

Diane is Founder and President of Mmapeu Management Consulting established in 1992.  She is deeply committed to helping the widest array of community stakeholders engage in organizational and institutional transformation that results in dynamic, effective and innovative solutions to intractable problems. 

Diane has trained, consulted and coached over 8,125 leaders and managers from social sector organizations, national initiatives, municipalities and foundations.  Her work focuses on achieving strategic clarity of organizational vision, developing and implementing leadership programs, executive coaching, and creating and evaluating dynamic programs.  Areas of expertise include cross-sector collaboration, educational reform, community development, faith-based partnerships, and diversity and inclusion.  Diane received her Ph.D. from Tufts University in Interdisciplinary Studies, a Masters in Divinity from Pacific School of Religion/The Graduate Theological Union, her M.A. in Nonprofit Management from The New School, and a B.A. in Communications from The Annenberg School at the University of Pennsylvania. 

Recent clients include Bureau of Land Management, California WIC, FAITHS – A San Francisco Foundation Initiative, Habitat for Humanity International, Impact Hub Oakland, Middlebury College, Northern California Grantmakers, and the U.S. Forest Service.  She is an ordained minister within the progressive Christian denomination of the United Church of Christ, a former chef, a musician and a dancer.