Agile software development is a widely adopted industry practice to accommodate rapid changes in customer requirements and yet keep up with the pace of software deliverables. Agile SCRUM development presents modeling challenges centered on its LOE phased development. Since the approach is incremental and iterative, it allows us to be adaptive and flexible to respond to changes from the client. The primary concern with this approach is the golden balance of resources and time needed to allocate for each iteration (Scrum cycle) of software that is delivered. A crystal ball that can foresee and display the right amount of resources to be used would be an ideal scenario. In this presentation we examine an alternative to the crystal ball. We’ll be looking at a simulation model developed by OST and used on an OST project. This model can estimate the right combination of resources and time to deliver the desired software deliverable in a scrum cycle given known requirements.