Your employees, although skilled and knowledgeable about your product or brand, may not be the best choice to represent you at an important event such as a product launch or some other promotional event.
You would do better with hiring very specific staffing for events
with experience in promotional events. It takes excellent people skills, communication skills, marketing experience, and an overall imposing presence to really grab the attention of people passing by on the street or walking around a trade show or wherever your promo event is being held. This may be your one and only opportunity to make an impression on your target market and you want the very best talent at the helm to get you that extra edge over your competitors.