Who gets gratuities?
Anyone who contributed to the event, or who was “in charge” of a certain service, like your Convention Services Manager, Banquet Captain, Valet Captain, or bus driver. If you feel someone went above and beyond, a gratuity is probably due them. Typically, Sales Managers or Directors of hotels don’t get gratuities, but it’s all based on your discretion–if you feel they’re worth it, then give them something.