A project is necessary for the development and progress of all services and products in order to create a profitable modern organization. In addition to creating new ones, it also increases the quality of existing products and services. It is active, unique, complex, limited in time and resources, and its purpose is goal achievement. For an activity to be considered a project, it must have certain characteristics. It is limited because it has a predetermined time frame, human and material resources, estimated budget at its disposal, and possible risky events. This whole unique sequence that connects all the phases of the beginning and the end of the project, and which differs depending on the type of project and the organization that performs it, is called the project life cycle. Project management is the application of knowledge and skills which, with the support of the necessary tools and techniques, represent models of project management and project teams in order to meet all project requirements in the best possible way and to achieve the desired goal. This process, which we call „management“, includes the establishment of an organizational structure that we call a „project team“. The project team is a key factor in the execution and realization of projects and it bears the greatest responsibility for the progress of the organization. The main goal of this paper is to show how cohesion in the process of project management, the role of the project team as the driving force throughout the life of the project, and quality communication are of crucial importance in achieving the goal – a successful project.