An order of work when everything seems to need doing at once.
When everything seems to need doing at once, starting is the hardest part. List the tasks, and for each one say when it needs to be done, whether it really has to happen and how easy it is to start. You get an order, with what can wait and what can be dropped. Do it together with your team member.
When to use it
Tasks grow bigger than asked, or never get finished