The success of a group is often measured by its final results, not necessarily the process used to arrive at those results. A group may use equal parts discussion, argumentation and peer pressure to guide individual members towards a consensus. A trial jury would be a good example of a group in action, not a team. The foreperson plays the leadership role, attempting to turn 11 other opinions into one unanimous decision. Since the jury members usually don't know one another personally, there is rarely an effort to build a team dynamic. The decision process for a verdict is the result of group cooperation.