Teams as Complex Adaptive Systems

Definition

Teams are complex adaptive systems (CAS) that exhibit three critical conditions: containers (the boundaries and identities that hold the system), differences (the diversity that creates patterns of behavior), and exchanges (the interactions and connections through which patterns form). Understanding teams through this lens reveals how to intervene in team dynamics not by dictating outcomes but by shaping conditions.

In the Book

Larsen and Nies adopt the Human Systems Dynamics (HSD) framework developed by Glenda Eoyang and others. HSD blends ideas from complexity science and behavioral sciences to help leaders understand and influence human systems.

Containers establish the boundaries, framework, tensions, and identities of a team. They can be psychological (shared purpose or interest) or physical (the team workspace). Containers contribute to group identity and trust. Purpose serves as a psychological container; sitting together in a workspace establishes a physical container. The size of the container matters—a container designed for a seven-person team will not work the same way for a twenty-person team or a whole department.

Differences among team members create the patterns of behavior that we call team culture. These include obvious diversity (background, gender, discipline) but also subtle differences in education, prior experience, status, perspective, or approach to work. Differences generate creative tension that can produce innovation or conflict. Liftoff planning, design, and facilitation choices can amplify differences (mixing people from different disciplines to spark new ideas) or dampen them (colocating same-discipline teams to reduce friction).

Exchanges are the interactions, connections, and transactions through which a system connects to itself and its environment. They include reports, presentations, conversations, meetings, agreements. Each exchange results in some shift or transformation. A liftoff event is a series of exchanges—pair introductions, small-group work, whole-group discussions, team formation activities.

The book emphasizes that every system is a container at one level of detail while being a part of larger containers. This fractal nature means that the dynamics of a liftoff event (a temporary CAS) reflect and influence the dynamics of the team (another CAS), which in turn reflects the organization (a larger CAS). Understanding CDEs helps leaders see what to attend to when designing and facilitating.

The SAPHIR case study shows these principles in action: the two-day workshop created a temporary container (the defined space and time); it amplified differences deliberately (asking participants to form groups by tenure, then by geography, then by shared interests, ensuring cross-boundary conversations); and it created exchanges that fostered collective understanding (pair introductions, small-group dependency mapping, shared meals that allowed informal problem-solving).

Why It Matters

Viewing teams as complex adaptive systems prevents the false hope that you can script team dynamics. It explains why the same team-building activities work brilliantly in one context and produce eye-rolling in another—because context (containers, differences, exchanges) matters fundamentally. It also reveals that team culture emerges from the conditions you create, not from your intentions. By understanding what shapes emergence, leaders can create conditions for high performance without pretending to control teams like machines.