To meet the requirements for both personas, GCC should create a portal for external researchers and give internal staff access to the main org. This will allow GCC to provide different features and permissions for each persona, as well as enable collaboration between them in a private Chatter group. For example, GCC can create a portal for external researchers using the Partner Central template, where they can view and update financial data,access reports and dashboards, and join Chatter groups. GCC can also give internal staff access to the main org using standard user licenses, where they can manage portfolio data, create workflows and processes, and join Chatter groups.