The first thing to look at is what the so-called "department manager" is. If it is a business, then the "department manager" means that the salesman expands the manpower of his team by increasing personnel, just like a grandfather in a family; The department manager is to manage the salesmen of his team while doing his own business, so that the salesmen can improve their business level and increase their business income.
If it is management, it can be employees recruited by the company through formal channels, sign a formal labor contract with the company, get five insurances and one gold, and the company's employee benefits also have two insurances. Generally speaking, it refers to the "manager of logistics department", such as finance department, administration department, human resources department and customer service department.