Getting at the vision thing
Whether you are running a company, a team, a product or a project, you've probably spent some time thinking about vision. We're often so preoccupied with day-to-day tactics that it can be hard to step back.
Thaler Pekar works with philanthropic organizations, using stories to help them find, develop, and share the stories and organizational narratives that rally critical support.
In Values as Visuals on the PhilanTopic blog, she describes using a deck of visual images to "foster reflection, elicit stories, and move into collaborative problem solving." The article describes several different tools and how organizations use them. Maybe one of them will be the key to finding the story for your UX group.