Caitlin Walker

 Caitlin Walker

Caitlin is a pioneer in the domain of Clean Learning and the developer of Systemic Modelling™. She is the author of From Contempt to Curiosity, which details many of the innovative and transformational projects that she has led across the U.K. and beyond.

 From Contempt To Curiosity

She has developed modeling methods from small scale group development to at-scale organizational culture-change programmes. She designs and delivers tailor made learning and development programs for addressing diversity, conflict, leadership, managing mergers, and creating learning organizations. Caitlin resides in the U.K. and teaches the Clean Language methodology worldwide.

Daniel Mezick

Daniel Mezick, Instructor

Coaching executives and teams since 2006, DANIEL MEZICK is the originator of OpenSpace Agility. He is also a ScrumAtScale Trainer, a SCRUM INC Scrum Trainer, and an author of three books on organizational change. A frequent keynote speaker at industry conferences, Daniel’s list of clients include Capital One, INTUIT, Adobe, CIGNA, Pitney Bowes, SIEMENS Healthcare, Harvard, and dozens of smaller enterprises.

Daniel’s books include The Culture Game (published in 2012),  The OpenSpace Agility Handbook (published in 2015), and Inviting Leadership: Invitation-Based Change in the New World of Work (published in 2018).

Upon publication, Inviting Leadership reached #1 on the Amazon bestseller list in the Organizational Learning category.

Daniel’s enterprise consulting practice is built upon the core concepts found inside these books. He conducts workshops based on these books, and also offers enterprise Agile coaching, Agile training programs for teams, and management consulting. You can learn more and contact him at

Doug Kirkpatrick

Doug Kirkpatrick

 Doug Kirkpatrick is an organizational change consultant, TEDx and keynote speaker, executive coach, author, and educator. He recently released his third book, The No-Limits Enterprise: Organizational Self-Management in the New World of Work with Forbes Books, and is a partner in NuFocus Strategic Group, an international consulting firm helping companies embrace the future of work. A member of the Forbes Speakers network, he has served as a director on a number of boards including the Association for Talent Development (ATD), the world’s largest talent development association with 35,000+ members in 120 countries, and the Leadership Institute for Development, Education and Research (LiDER) to develop leaders throughout the Americas.

 Books by Doug Kirkpatrick

 Doug began his career in the manufacturing sector, principally with The Morning Star Company, a world leader in the food industry, as a financial controller. He now engages with Open Leadership Network, HumanCentric Labs, Great Work Cultures, Center for Innovative Cultures, Responsive and other vibrant organizations and leaders to co-create the future of management. His previous books include Amazon bestsellers Beyond Empowerment: The Age of the Self-Managed Organization and From Hierarchy to High Performance: Unleashing the Hidden Superpowers of Ordinary People to Realize Extraordinary Results.

Mark Burgess

Mark Burgess

Mark Burgess is a theoretician and practitioner in the area of information systems, whose work has focused largely on information systems and infrastructure. He is known particularly for his work on Configuration Management and Promise Theory. He was the principal Founder of CFEngine, Aljabr, and now founder at ChiTek-i. He is Emeritus Professor of Networks and Systems from Oslo University College. He is the author of numerous books, articles, and papers on topics from Physics, Computer Science, to fiction. He also writes a blog on issues of science and IT industry concerns. Today, he works as consultant and advisor on science and technology matters all over the world.

Mark Sheffield

Mark Sheffield, Instructor 

Mark is an Agile coach, certified trainer, and co-author of two books on organizational change. He focuses on explaining and then implementing invitation, opt-in, and pull when coaching Agile to executives, teams and organizations. Mark has been training, coaching, and launching Agile teams since 2013 and has over 20 years’ experience developing software solutions.

He has been delivering Open Space online using Zoom since 2017, serving about 1700 people during this time via a mix of public and private (corporate) events.

Books: The OpenSpace Agility Handbook and Inviting Leadership

In 2015 he co-authored The OpenSpace Agility Handbook, which describes an engagement model for leveraging invitation and Agile principles when implementing organizational change. See for more information.

In 2018 he co-authored Inviting Leadership, a tutorial and reference guide for making the shift from leadership delegation, to leadership invitation. See for more information.

Sarah Scarratt

 Sarah Scarratt, Instructor

Sarah is a certified Systemic Modelling and Clean Language facilitator and Neuro Linguistic Programming (NLP) trainer with experience of working with groups and teams in education, the health service, and in her own family-run business.  Based in the Loire valley, France, for the past 20 years, the sudden shift to online work has given Sarah the opportunity to train with colleagues across the globe.

Running her own business for 19 years has given Sarah great insights into the challenges faced by employers, especially when it comes to team-building, managing conflict, juggling customer demands with ever-increasing administrative and regulatory pressures, time management, recruitment, training, and customer service. Sarah brings a great sense of fun and a steadiness to our team.

Shaun Hotchkiss

Shaun Hotchkiss

Shaun is a UKCP registered psychotherapist, an NLP Master Practitioner and a consultant, coach and facilitator. He also supervises other therapists, coaches and facilitators. He worked and travelled with David Grove in the UK and New Zealand when he was developing Clean Space and Emergent Knowledge - David was his good friend. He inherited the “Whirly Gig” and runs regular retreats and trainings.

Shaun organises the Northern Taste of Clean and he also cooks a great curry. He is married to Caitlin Walker and they have three children. 

Working with Shaun is like going to an adventure playground. All of the equipment and structures are there and each one is fun and safe to play on, and there is always the experience of something new emerging.