In the menu "My name"->Overviews -> Tasks, you as a manager have an overview of all tasks across the office. An advanced filter allows you to easily search for specific tasks, e.g. by responsible person, client/case or task status.
You can export tasks, add new tasks, verify the detail of a task, approve it or return it for rework.
Following states are possible for tasks to be in:
Pending (no underlining) - pending, deadline in the future
Pending (in red underlining) - pending, deadline has expired
Done, not yet approved - task is done and awaiting approval (or can be returned for rework)
Done and approved - the task is already completed and approved