Final answer:
One of the main problems of the early Classical period of management was work overload, conflict, and ambiguity in defining the managerial role.
Step-by-step explanation:
In the early Classical period of management, one of the main problems was work overload, conflict, and ambiguity in defining the managerial role. Managers faced excessive work demands, which led to stress and burnout. Additionally, conflicts and a lack of clarity in job responsibilities made it challenging for managers to effectively carry out their duties.