The hardest thing to overcome was the serial/waterfall mindset of some participants. The development team leader and the tester from the responsible test center wanted more formal documentation. The DBA’s data-driven mentality was typical but we eventually confronted it successfully, mostly because of the type of the project that focused on UI integration and legacy data presentation that necessarily had to go over multiple iterations.
Senior management was already committed to the project because it had already participated in the project’s definition and pushed for it.