Answer:
Span of control.
Step-by-step explanation:
Span of control is a span of supervision which shows the number of can be effectively handled and controlled by a single manager. According to this, a manager should be able to handle what is of employees under him is decided. Based on employees decided, number of levels and managers are determined. There are two types of span, Narrow and Wide.
In case of narrow span of control, the work and authority is divided amongst many subordinates and a manager doesn´t supervises and control a very big group of people under him.
In case of wide span of control, manager supervises and control effectively a large group of persons at one time. Due to this, better communication, better supervision and hence better co-ordination is achieved.