When I joined Quicken Loans, the agile process was still in its early stages.  During one of my initial projects, I organized a story writing session with the development team, UX and Design members, product managers, and other stakeholders.  After introducing the process, we moved into a brainstorming session.  Although some team members were initially skeptical, by the end, everyone recognized its value, leading to the continuation of this practice in future projects.