Briefly explain the following terms and how they either add or detract from teams in a business setting:
Social loafing
Cohesiveness
Distributed leadership
Groupthink

Social loafing is the tendency of some people to avoid responsibility by "free-riding" in groups. Social loafing and other problems can easily turn the great potential of teams into frustration and failure, and can cost the team much in time, effort, morale and output.
Cohesiveness is the degree to which members are attracted to and motivated to remain part of a team. Persons in a highly cohesive team value their membership and strive to maintain positive relationships with other team members. Because they experience satisfaction from team identification, they tend to conform to the norms. This leads to more effective and efficient teams.
Distributed leadership is when all members of a team contribute helpful task and maintenance behaviours. This is useful in a business setting as it spreads out the maintenance responsibilities and promotes cohesion among team members. This facilitates a more effective team environment
Groupthink is a tendency for highly cohesive teams to lose their evaluative capabilities. Groupthink can occur anywhere. In fact, Janis ties a variety of well-known historical blunders to the phenomenon, including the lack of preparedness of U.S. naval forces for the Japanese attack on Pearl Harbour and the U.S. Bay of Pigs invasion under President John F. Kennedy.