How did you guys intend for us to use trello with large products?

I’ve found for larger launches (service/product/other project), sometimes it is easier to either have 3 separate boards for the main phases and/or be very intentional about the team members assigned to particular cards and lists. Due dates have also been a life saver and connecting it to a Gantt chart can provide a high level overview of the project instead of viewing the whole timeline based on the structure of the individual boards.