Ethicon, Inc. a pharmaceutical company, entered into an agreement with UPS Supply Chain Solutions, Inc. to transport pharmaceuticals. The drivers were provided by International Management Services Co. under a contract with a UPS subsidiary, Worldwide Dedicated Services, Inc. During the transport of a shipment from Ethicon's facility in Texas to buyers F.O.B. Tennessee on of the trucks collided with a concrete barrier near Little Rock, Arkansas, and caught fire, damaging the goods. Who was liable for the loss? Why?