I'm not sure if I need a workspaces.
We all have separate Trello boards and I guess I would like to know if we can all still be added to each other's cards, as well transfer cards to each other's boards and if so, do I need to upgrade or is the free version suitable for me? We only use Trello to communicate information back and forth between users, so again in my situation I'm not sure what the need for workspaces would be for?