Computerized systems and methods for managing a workload varying in time applicable to a help desk. A future workload is forecast from historical workload data. A first analysis result is built on an earlier section of historical data, and a second analysis result is built with more recent historical data. The two results are combined to yield a workload forecast. Further, the resources needed for covering a forecast workload value are calculated automatically by equating generic expressions for the resources demanded for servicing the forecast workload and the resources offered for handling the workload.