Active Roles provides the ability to deprovision rather than delete groups. Deprovisioning a groups refers to a set of actions that are performed by Active Roles in order to prevent the use of the group.
The Deprovision command on a group updates the group object in Active Directory as prescribed by the deprovisioning policies. Active Roles comes with a default policy to automate some commonly-used deprovisioning tasks, and allows the administrator to configure and apply additional policies.