A long read, but worth reading if you are in this domain: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx.
Manage Food Service Staff. Food and beverage managers are often responsible for recruiting, hiring, training, evaluating and terminating food service staff members. Personnel management of restaurant staff requires experience as well as interpersonal skills.
No McDonalds owner in his right mind would have some floor swabbing high schooler as their primary shift manager in a location with any signficant volume. Even locations at interstate interchanges need a highly reliable manager that can motivate the staff to reliably and quickly fill orders on an increasingly complex menu that includes dozens of drinks and desserts, salads, sandwiches, and breakfast items...