What is the key of a team?

People who can cooperate with each other in order to achieve the goal.

No one should say that he did it alone and without him or her the project will fail.

Having the same target which is the success and feeling that this project is their baby and they should all participate to make it better.

Simply the team "ethos". There is no "i" in team!!!

it has to be passion!

                        SYMBIOSIS 

Availability of the members at all the required time, trust within the team members, Comminication must be clear and available to each member. The team members should create a connection within each other too.

Like I say "Team work WORKS!". So,  key of any team is Team Bonding.

 Strength of the team is the key of a company and if team has trust to each other then they must increase the sales.

qualified

working together to get the best out of the team.

unity of direction and strength without any chaos conflict

One thing " MOTIVATION".