Trust

Teams will have a mutual trust of each other. You will know that these people will not let you down, that you can rely on the answer to a question, that you know that if someone has said they will do something then they most probably will. Now it is not that all of a sudden individuals become super reliable and efficient once they become a real team member. No, that is not the case, but it is true that people perform better within the context of a team than they do outside of one. So, they are more reliable and more to be trusted than they would otherwise be.