You can group your staff in teams to match your org. structure.
To define who belongs to a team leader (manager, coordinator, team lead...).
Go to the screen of the team leader (a person) and add the module: Team
When a team is setup, the team leader will see only her team information, in:
Team leaders are able to view, approve or reject the timesheets of their team only.
Team leaders are not able to approve their own timesheets.
Chart & Table and Report