Step 1: Understand the concept of direction.
Direction is an essential function of management that involves guiding and supervising employees to achieve organizational goals.
Step 2: Evaluate the options.
- Direction is compulsory because it ensures that employees are aligned with the organizational objectives.
- It is not unnecessary or a waste of time; on the contrary, direction drives efficiency and productivity.
Step 3: Conclude.
Direction is compulsory for effective management and achieving goals.
Final Answer:
\[
\boxed{\text{Compulsory}}
\]