Information Technology (IT) operations, Architectural, Engineering, and sustainment support services to all Defense Health Agency (DHA) environments. These environments consist of approximately: 3,000... Information Technology (IT) operations, Architectural, Engineering, and sustainment support services to all Defense Health Agency (DHA) environments. These environments consist of approximately: 3,000 physical and virtual servers, 250 sites located around the world, 250,000 end user devices, and 200,000 users. Sole Source bridge put in place due to source selection delays