Management is the basis of all necessary changes required for any organization. In order to reach organizational objectives, it is necessary to use human resources as effectively as possible. All management team members need to know about their own thinking as well as their ideas on reaching common objectives with better outcomes. In this paper, we present an empirical investigation to study the relationship between leadership style and perceived organizational effectiveness by directors and managers in organizations. The proposed study distributes a questionnaire consists of 37 questions among some management team of Agricultural ministry in one of the provinces of Iran. The main hypothesis of this survey examines the positive relationship between leadership style and perceived organizational effectiveness. The other hypothesis is associated with the supportive leadership style and perceived organization effectiveness and the third question is associated with democratic leadership style and perceived organization effectiveness. The results of Spearman-Pearson test confirm all three results, which indicate there is a meaningful and positive relationship between leadership style and perceived organizational effectiveness.

Just in time is one of the most important components of having efficient production plan. The primary objective of JIT is to reduce the amount of storage as much as possible to remove the cost of inventories and work-in-progress. However, the implementation of JIT is a tedious task especially in developing countries, where there are shortages for essential infrastructures and increase the risk of production in case of JIT adaptation. In this paper, we present a survey to detect important factors preventing JIT implementation in Iran. The proposed study designs a questionnaire for assessing important factors influencing JIT adaptation, which includes inflation, political sanction, unreliable suppliers, shortage of cash flow and weak organizational culture. The results of our survey confirm that shortage of cash flow is the most important factor, follows by economical sanction and inflation.