The first intervention is to gather data through the use of questionnaires or , more commonly, through interviews. The nature of the data gathered will vary, depending on the purpose of the team-building program, the consultant’s knowledge about the organization and its culture, and the people involved. The consultant already may have obtained a great deal of data by sitting in as a process observer at staff and other meetings. The data gathered also will depend on what other Organization Development (OD) efforts have taken place in the organization. By whatever method obtained, however, the data usually include information on leadership styles and behavior ; goals, objectives, and decision-making processes such variables of organizational culture as trust, communication patterns, and interpersonal relationships and processes, barriers to effective group functioning, and task and related technical problems.