Your network consists of four Active directory domains named East, West, North, and South.
The North domain is the forest root domain.
All domain controllers run Windows Server 2008.
Department managers use a sales reporting application on a server named SalesServer1 in the East domain.
A domain local group named SalesAppEast in the East domain has access to the application.
Each domain has a global group named LocalManagers that contains all managers from the corresponding domain.
All global groups are added to the SalesAppEast domain local group.
You need to ensure that any unauthorized member added to SalesAppEast is automatically removed.
What should you do?