What situations makes a Team effective ?

•          Pure Goals: The team's whole impartial desires to be recognized and distinct in expressions which permit each participant to know the similar objective. The leader has a significant part in interactive a perfect image of what the association assumes from the group. An elegance which inspires a enquiring method is possible to expose any fellows' worries, mistakes or struggles which essential to be completely succeeded. 
•           Correct Headship: Management is a collective job centred on the necessity of the mission fairly than through reflection of prescribed character or position-based authority. This needs significant elasticity in identifying and consenting other team fellows to workout real guidance when a supporter's assistances are additional appropriate to the squad at that period. There is an essential direction occupation. It is unique of consuming assistances to progress the group and creating certain that interval is assigned correctly for team- structure undertakings.
•          Appropriate involvement: For a squad to be intelligent to work creatively, its participant’s crucial show the kind of abilities, information and practise and the correct 'mix' of these for the assignment it is responsibility. Followers are appreciated for what they can subsidise and are refreshed to improve. Slight period is misused on deliberations of what associates cannot do. The weight is on strong point, on the optimistic.
•          Assurance to the line-up: Team associates practice actual strength from their participation and the involvement in objectives. They are enthusiastic to spend huge vitality in the benefits of the squad. Relationship is extremely cherished and participant behavior is powerfully inclined by thoughts of line-up achievement. This is exact dissimilar from the somewhat artless and (from the effort effectiveness opinion) slightly uncreative 'WE' sensation that is portion of the understanding of basically presence with assemblage of individuals who get on fine organised and appreciate each other’s' corporation. 
•     Reference  

    https://uwaterloo.ca/centre-for-teaching-excellence/teaching-resources/teaching-tips/tips-students/being-part-team/teamwork-skills-being-effective-group-member