The Forrester Growth Discovery Model is a four-step approach to streamlining the analysis and selection of new markets and buyer audiences. The third step in the model, prioritize, leverages the Forrester Relative Targeting Framework to prioritize growth opportunities using internal and external data sources including buyer and customer insights. In this report, we describe how portfolio marketers can establish a shared frame of reference, identify the right set of data and insights, and prioritize the most attractive growth opportunities for the company.