In the current competitive context organizational development of enterprises determine radical changes in order to cope with an environment dominated by deep uncertainty and creates the ability to renew its own knowledge assets in order to gain competitive advantage in a market more and more complex and diverse. A detailed analysis has been made of the organizational development at the County Postal Office in Cluj according to Greiner\'s model in the five phases of development: creativity, leadership, delegation, coordination and collaboration, the five types of crisis being defined for each stage/phase, respectively: leadership crisis, autonomy crisis, control crisis, staff crisis and unknown crisis. By delegating responsibilities a special attention is required with regard to the way of acting, the availability of managers to give up power, the \"reaction\" of top managers, etc. With the new development phase, that is the phase of delegation, there are found some objectives with respect to use of delegation as a tool to facilitate organizational development, the creation of an organizational culture favorable to development, the improvement of the motivational system or the development of interpersonal relationships. The evaluation of organizational development at the County Postal Office in Cluj was made by applying a questionnaire on organizational development that consists of 60 descriptive statements, answered by four of the organization\'s management and 56 employees with executive positions. Following the results obtained from the questionnaires there has been showed that the organization is in phase two of development that is leadership development. The applied management style starts to be on odds with reality and triggers the crisis of autonomy, which requires delegation of authority and responsibilities to as many employees as possible, involvement and encouragement of initiatives of the staff. After analyzing the questionnaire responses, it was revealed that the organization is in the second phase of development, respectively development through leadership, requiring an authorized leader to streamline the activity and to create major necessary budgeting systems of reward and communication.
