If you work with external subcontractors, you may need to share certain information (like their assigned jobs) without sharing other events or information kept on the internal calendar.
A shared calendar with granular permission controls can be set up to do exactly that.
You can give each contractor permission to only a single sub-calendar. Assign their jobs to that sub-calendar (in addition to other internal sub-calendars as needed). Then give the contractor access to only that specific sub-calendar.
Compare the supervisor's view with the contractor's view:
You can set this up for each subcontractor you work with. Each contractor gets customized calendar access that displays only the sub-calendar(s) relevant to their work. Meanwhile, the internal team can still see all the jobs/events in one place and work efficiently.