Leadership is the process of influencing relationships between leaders and followers by the leaders motivate, persuade the followers try to work to their full potential in order to make the changes and achieve the desired goals. The sources of influence of the leader may come from official positions (supervisor, manager, director, etc.) or from other sources (knowledge, expertise, social skills, communication, etc.). These positions derive from an authority based on the rules and laws. Therefore, a person may play a role as a leader because of his or her position in the organisation, but his or her position does not guarantee that he will have a good or effective lead. Some organisations may have un-formal leaders who may have equal or greater
For organisational orientation, the leaders will define vision, mission and strategic while the managers will focus on planning and budgeting. For organisational management approach, the leaders will create the joint values and the organisational culture while the managers will focus on organisational management, human resource management direction and control. For member relationships, the leaders will focus on create the member inspiration and motivation as a coach and facilitator while the managers will focus on rules and formality as role-playing by position (Commandant). Leader is person who understand the emotions of others faster, understand the variety of behaviours arising from the performance of followers, specialisation in conflict management, and the ability to communicate clearly with the followers. The manager will not focus on emotions related to the job, and the mentality of professional practice and the importance of commanding the management plan. In addition, the result of the drive of leadership will be change the organisational creation and development while manager will be stabilise the organisation (Daft,
The visionary leadership is the ability to create and communicate the future vision of the organisation (Robbins, 2012a). Each company points out that the organisation is growing and getting better from the present, reliable, interesting, and realistic (Securities and Exchange Commission of Thailand, 2017a; Securities and Exchange Commission of Thailand, 2017b; Securities and Exchange Commission of Thailand, 2017c; Securities and Exchange Commission of Thailand, 2017d; Securities and Exchange Commission of Thailand, 2017e; Securities and Exchange Commission of Thailand, 2017f; Securities and Exchange Commission of Thailand, 2017g; Securities and Exchange Commission of Thailand, 2017h; Securities and Exchange Commission of Thailand, 2017i). Theses vision of each company is appropriately applied as an operation force for the future growth of the organisation. In this process skills, talent, and resources are fully utilised to make the vision a reality. The vision details of each company have focused on organisational values, realistic and