Enable auto-assigning to Group Lead

Currently, JIRA does not support a "Lead" status within a Group. This is weird because when an issue gets to a certain state, it often has to be auto-assigned the The Guy In Charge first who will decide what to do next. (E.g. if an issue gets to "To Be Regressed", it should be assigned to QA Lead first (automatically), and then reassigned by the lead to a particular resource.)

What would be nice to have from this standpoint is:

• Capability to define a "Default Member" / "Lead" of a Group
• A post-function to auto-assign issue to a Lead of specified Group (selected from a dropdown list)

The "Assign to Group" plugin does not qualify because it requires explicitly specifying the Group Lead in transition properties which's a maintenance problem. Defining users and groups must be located entirely in User Management section, else evey time a group lead is hired/fired, the admin would have to swicth workflows (which may take up to hours if the databse is big enough) and modify every certain transition to change the user defined there.