Assumptions Challenge™

Learn how to stress-test your strategies and pressure-test your plans.


Assumptions Challenge is a foundational Red Team Thinking Tool that will help you identify the stated and unstated assumptions behind your plans and strategies while also providing a rigorous framework for deliberately challenging your thinking in order to overcome cognitive biases, groupthink and other threats to sound decision making.

"Culturally agnostic, along with sector, product, organisation - great tools for use in any organisation."

– Ellie Cloke, United Kingdom

Course Overview


Who is this for?

This workshop is for decision makers, planners and consultants who want to develop and execute more effective strategies and plans in today’s complex and rapidly changing world.


What will I gain?

This is practical, hands-on training that will teach you everything you need to know to begin using Assumptions Challenge in your organization right away and start to identify and challenge the assumptions behind your strategies and plans.


All participants who successfully complete this course will receive RTT Certification in Assumptions Challenge.

Those who complete all of the RTT Core Classes will be awarded formal certification as a Certified Red Team Thinker™.


Assumptions Challenge

April 6, 2022


6 April 4 pm – 7:30 pm PDT

7 April 7 am – 10:30 am SGT

7 April 9 am – 12:30 pm AEST

Want to know what time this is for you? 
Check this time zone converter.




This is a live course that will be delivered virtually through the ZOOM video conferencing platform and MURAL collaboration tool. You will be provided links to both application and will need a stable internet connection capable of supporting livestreaming of both audio and video. Please be advised that this course is only open to red teamers who have successfully completed the RTT Boot Camp.

NOTE: The course fee is in US$. While this course is being offered from California, anyone can participate, regardless of the location. The times for this course are listed as PDT.


Red Team Thinking is the world’s leading provider of decision support red teaming for business. In fact, our president literally wrote the book on red teaming. Powered by a cadre of military-trained red team leaders and business strategists, we help companies of all sizes become disruptors in their industries, rather than one of the disrupted. And we can do the same for your business.


Bryce G. Hoffman

Bestselling Author & President, Red Team Thinking

Bryce is a bestselling author, speaker and strategic advisor, as well as the founder and president of Red Team Thinking. In 2015, he became the first civilian to graduate from the U.S. Army’s red team leader training program. He then worked with companies around the world to develop a model for business red teaming, which he shared in his 2017 book, Red Teaming: How Your Business Can Conquer the Competition by Challenging Everything. His first book, American Icon: Alan Mulally and the Fight to Save Ford Motor Company, has become a manual for CEOs looking to transform their corporate culture. Bryce has taught these tools and techniques to companies around the world, including Verizon, JPMorgan, Delta Air Lines, Huawei and Roche, and he regularly appears on television and radio news programs internationally. Prior to founding Red Team Thinking, Bryce spent 22 years working as a financial journalist for newspapers across the U.S. He also teaches red teaming at the University of California, Berkeley’s Haas School of Business.

Jayson Coil

Jayson is a U.S. Army veteran with over 25 years of experience in wildland and structural firefighting. In addition to overseeing the operations of an all-hazard fire agency operating in some of the most complex terrain in the US, he also serves as an Operations Chief on a National Type 1 Incident Management Team where his focus is strategic and operational plan development. He has spent over two years deployed on incidents.  Jayson completed post-graduate study in Leadership and is currently pursuing a Ph.D. in Performance Psychology where his concentration is on the role applied critical thinking plays on decision quality in complex environments.


"Very topical and relevant particularly in today's environment."

– Jo Hanlon, Australia