This peer assist process is great as a stand alone session or can be part of a community of practice.
It is useful when a group or project has a challenge and needs some fresh thinking. We find that the helping behavior of this process helps build trust.
You probably want at least 5 people as part of the assisting group. You don’t want many more than 12 or you will need to change the process, limiting the advice and the go-round at the end.