While managing a project to create go$-$to market strategies for a medicine, Fiona learns of a new technology where medicine is imbibed through the skin by wearing a patch. She allocates two days to her team, who undertake an analysis to show that the new technology is not too expensive, and they make a recommendation to the Steering Committee to add a new method of disbursements as a project goal. This shows Fiona followed which project management principle?