Answer:
illusion of control.
Step-by-step explanation:
The illusion of control is the tendency for people to overestimate their ability to control events; for example, it occurs when someone feels a sense of control over outcomes that they demonstrably do not influence.
In the scenario, although Business has been consistently slow on Fridays in recent months, yet DeMarcus decides to continue with the extra staffing.
This is obviously a case of illusion because he has no control over the external business environment and there is no logical reason to continue with extra staffing.