With certain lists, items in the list are pre-associated with Project Team-Roles, via the Owner Role column.
The following lists have the Owner Role column available out-of-the-box in BrightWork:
One benefit from assigning Owner Roles to items in these lists is that you can use the Project Team-Roles list Propagate Owner Values feature. This lets you easily make a selected Team-Role holder the Owner (and Assignee, if required) of items with that Team-Role.