A system assumes control over selected functionality in servers configured as a computerized work management systems (WMSs) and other servers configured as computerized work intermediation platforms (WIPs) to form communication channels therebetween. The system includes an integration platform responsive to actions at the WMS and the WIPs to communicate all data originating at the WMS and destined for the WIPs, and to communicate all data originating at the WIPs and destined for the WMS. The platform provides the WMSs with a set of same protocols and the WIPs with another set of same protocols for establishing the data communication channels with the platform as an intermediary. The system also includes an agent that embeds a sourcing GUI into the GUI suite of the WMS, and a talent architecture hosted on another server remote from those of the WMSs and the WIPs that responds to the sourcing GUI.