This document discusses different types of work teams and what makes teams effective. It describes work groups, problem-solving teams, self-managed teams, cross-functional teams, virtual teams, and multi-team systems. Effective teams are characterized by trust among members, clear goals and plans, a shared belief that the team can succeed, and the ability to manage conflict constructively. While teams are often used in businesses today, teamwork is not always the best approach and requires careful consideration of whether the work truly benefits from a collective effort.