One of the leadersip approaches that I considered in my PMA is transformational leadership. It is main focus is on leader-followers relationships as success driver. It proposes behaviours and traits that lead to the improved relationships as charisma, support, motivation. It also says that leader should understand the differences between different followers and chose communication techniques accordingly.
Indeed, first of all that we as leaders should do, is working on our relationships with followers. Without it there will never be a flow of information, trust in leader and job satisfaction by followers. Many managers confuse the word 'fear' with 'respect'. What I really think is that the initial mission of every 'manager' having new team should be building good relationships with followers. Surely, he should continuously work on them in order to keep it for the long-term. Also earning people respect and trust is essential for being effective leader. If people respect you they will follow you no matter how challenging the task is, yet suggest other ways if they do not competely agree with the leader.