you are dispatched to a private residence where the patient is unresponsive, not breathing, and has a weak pulse. you secure her airway with an oral airway and ventilate her with a bag-mask device at a rate of one breath every 5 seconds. an als transport ambulance arrives. the paramedic and her aemt partner enter the house and approach you and the patient. now that the ambulance has arrived, who will be the team leader?