Answer:
cross training
Step-by-step explanation:
Based on the scenario being described within the question it can be said that the training method being illustrated in this scenario is known as cross training. This is a training method in which employees are taught the skills and responsibilities of another position within the same company in order to allow them to complete the tasks of that position as well and therefore increase the individual's overall efficiency within the company. Which is why the company trained Tim and Jenny to learn each others position.