Teams vs. Groups: The Foundation
Before applying team principles, it is critical to distinguish between teams and groups. This distinction is not merely semantic — it defines the unit of analysis for all team science research and determines which principles apply.
“A bounded set of people who work together over some period of time to accomplish a common task, not an amorphous set of individuals who are a team in name only.”
— Hackman (2011, p. 151)
What Defines a Team?
Teams are defined by four core characteristics that distinguish them from informal groups:
- Interdependence — Members rely on one another to accomplish shared goals. Success is genuinely collective, not simply the sum of individual contributions.
- Bounded membership — It is clear who is and is not a member of the team. Ambiguous boundaries undermine coordination, accountability, and trust.
- Shared purpose — A common task or mission that unifies effort and provides direction for how members coordinate their work.
- Temporal continuity — Enough stability for shared history, routines, and trust to develop over time. Constantly changing membership prevents team learning.
A collection of individuals who share a label but lack these characteristics is a group in name only. Applying team principles to such a group will produce little effect, because the underlying structure that makes teamwork possible is absent.
References
Hackman, R. J. (2011). Collaborative intelligence: Using teams to solve hard problems. Berrett-Koehler.