From time to time you may need to change the manager/time off approver for a department/team.
To do this, click Dashboard > Employees > Manage > Company > Departments
Hover over the department in question and click the yellow update button:
Select the correct manager from the drop down list and click update.
If the manager you are looking for doesn't appear in this list, check the Administration tab of their employee record. To show up on the list, they must have the "Manager" user profile.