Maybe the objects-as-agents could pass around a struct? E.g. I imagine the Store_Manager (driver class) could call (like on the telephone) the Accountant and as

Maybe the objects-as-agents could pass around a struct? E.g. I imagine the Store_Manager (driver class) could call (like on the telephone) the Accountant and ask to submit a report (struct) of all the inventory that fits the parameters. Or would that be another anti-pattern?