In a large organization, which type of manager supervises day-to-day operations?

The first-line manager supervises day-to-day operations. First line managers handle problems in their department. They handle employee problems and monitor the quality of work. First line managers gather employee opinions about work satisfaction, which is eventually told to higher-ups, who make the necessary changes to satisfy employees.

Front-line manager

Front-line managers typically deal with employees directly on a day-to-day basis. They are usually the junior most when it comes an organization's management structure. Front-line managers typically have job titles such as supervisors and team leaders. They primarily handle an organization's product or service production activities.