I worked at CSG International full-time
The only thing CSG cares more about than their employees is their ability to satisfy, if not exceed, the expectations of their clients
CSG's core technology is considered archaic. That said much has been, and is being done to ensure the older technology is not an inhibitor to their clients market needs.
Advice to Management
Keep up the good work. The recent reorganization will lead to a more focused and responsive organization. Change is never easy, but often surfaces a fresh perspective.