You can create nested Teams, e.g., "Sales Team" consists of Teams "Sales Development Reps" and "Account Executives". However, there is one limitation to how you nest your Teams. You cannot create an infinite loop, where a Team definition is self-referencing.
Example of a self-referencing scenario:
"Sales" team includes the "West Coast" team
"West Coast" consists of "Sales" and "Customer Support" teams
Hoopla will prevent you from creating self-referencing Teams, which means that you may not see certain Teams listed in your available options when building a new Team.