While a plan has a final due date there are interim tasks (sub-tasks) that must get completed for the entire plan to achieve its state due date completed.

For that

1. Each sub-tasks should get assigned to specific people with their due dates.




2. Those subtasks must show up in their individual to-dos so that they know what they are working on. (this part is done




3. If the change their due date then the team could know if the overall task will be completed in time.

Therefore please add the option to create due dates & assignments on the subtasks. It is a missing link!