As a manager, what are you to do if you have an employee that is not doing the work they were hired to do?

Technically, a manager serves the role of enforcing the rules and order of the company and/or the boss of a company. While a manager is sometimes presented as a person who can represent the needs or concerns of workers, the manager's purpose is definitely to represent the specific needs of the boss, and as an extension, the owning class. Workers, under this capitalist system, exist to produce profit for the owning class, whether that be the boss of a small business or that of a multinational corporation. Managers are paid more than regular workers to ensure that the workers labor as quickly and efficiently as possible in order to produce profit for the boss. If a manager finds that an employee is not doing the work expected to produce profit for the boss, the manager is expected to reprimand the employee, perhaps dole out some sort of punishment in the form of a disciplinary action, or potentially fire the employee. Some managers may take a less severe initial approach and have a conversation with the worker, but there is ultimately little room when it comes to ensuring profit for a company.