Answer:
Leadership
Explanation:
According to Chester Barnard, the sole purpose of a leader in any organization is to make all members of the group believe in the decision made by the leader, and able to organize each of them so they can collectively reach the group's goal (common purpose).
He believed that all leader can do this by appealing to several factors such as showing the right attitudes that inspire the groups, setting up positive values and ideals that change the group's perspective, and create hope within the members' heart that they have what it takes to achieve the goal.
