If your employer hires, supervises, and pays assistants, control over all workers on the job generally exists. Sometimes, another worker may hire, supervise, and pay other workers at the direction of the employer. As long as the worker is acting as an employee in the capacity of a supervisor or a representative of the employer, control over workers on the job still exists. On the other hand, sometimes a worker hires, supervises, and pays other workers resulting from a contract under which materials and labor are provided for the attainment of a result. In this case, the worker is considered an independent contractor.