Conflict is a confrontation over disagreements about a goal, feelings, desires or interest. Conflicts cannot be characterized as good or bad, but the effects of conflict can be good or bad. In team conflicts, we get both positive and negative effects. The positive ones help us to look at the problem fully and consider all possible solutions to the problem, while the negative impact of the conflict blocks the successful and efficient operation of the team. The team leader should not prevent conflicts but should know how to manage them. It will be easier for him to succeed if he knows and respects the causes of the conflict. It is almost impossible to create an ideal team, but when forming a team with regard to personality, it is good to create diversity. It is a real challenge for a manager to create a team of constructively diverse personalities. Managers have at their disposal various methods to analyze personality through questionnaires or psychological tests, and in agreement with a professionalist, usually a psychologist to review the personalities of future team members. The purpose of this paper is to show the importance of teams, to explain what are its advantages over working groups, and what are the characteristics of a good team. At the same time, the goal is to explain why communication, especially interpersonal communication is necessary for the survival of any organization and the key to success of any interpersonal relationship, with special emphasis on trust as the most important part of communication and the importance of empathy in the business world. Since the team is composed of six to a dozen different individuals, special emphasis is placed on assertive behavior, as the most acceptable and optimal and certainly the most desirable form of behavior of each individual within the organization and / or team. A total of 61 respondents participated in the primary survey, and the results indicate that the most used conflict resolution strategies are compromise and cooperation, while the least used are the imposition strategy.