Answer:
Planning.
Explanation:
In this question, it is correct to say that the supervisor is weak in the planning management function.
When the supervisor tends to deal with problems as they arise, prioritizing only a few problems that seem to be important to top management, he is unaware of the reality of an organization as an integrated system, where each system is important and each problem must be addressed. considered of equal importance.
Planning is extremely important in order to know the company's strengths and weaknesses and thus anticipate problems that may arise, so that the objectives and goals proposed by planning are achieved effectively.