The default Outlook Calendar pane includes links to the calendars of other staff members, grouped as "Team <Manager's name>". Some find this clutters the Calendar view and wish to hide the Team calendars.
Step-by-step guide
To hide the Team <Manager's name> calendars:
Open the Calendar view in Outlook
On the office ribbon, locate the "Calendar Groups" icon in the Manage Calendars section.
Click the Calendar Groups drop-down arrow. A list of active calendar groups will be displayed.
Un-check the "Show Manager's Team Calendars" item.