How groups help organizations?

The organizations are using the word team for the groups now a day. It is common knowledge that groups are the backbone of the organizations because of the systems effect in which each group/department is affected by at least one other group and each department affects the performance of the total organization. Groups are good for people. Groups can improve creativity. Groups can make better decisions. Groups can increase commitments to action. Groups help control their members. Groups help offset large organization size.