Large projects require big thinking. Don't worry! With pinnery you are prepared best!
You can attach an unlimited count of checkpoints to every card. When you are working on a certain task you can see it on the checklist and resolve the task step by step. So you ensure nothing gets forgotten.
Every card can have a whole subboard. The subboard is working just like a normal board and you can create columns and cards in it. Whenever a task in the subboard is getting resolved this information is shown in the higher leveled card. You can assign a different team to the sub board which are working on the cards.