Syntegrity is a formal model presented by Beer in the 1990s and now is a registered trademark. It is a form of non-hierarchical problem solving that can be used in a small team of 10 to 42 people. It is a business consultation product that is licensed out to consulting firms. The term comes from the words "synergistic" and "tensegrity".
Stafford Beer
Syntegration and Team Syntegrity