Team activity to establish trust and get teams through the storming phase together.
We [the Agile community] value transparency and prioritization among many other things. We prioritize (or order) the most important things or the riskiest things to work on first. This is not new. What happens when it all is important or is all very risky or there is lack of clarity between the business and the team? Who has the final say in the priority of work items?