In short, "no". We made a conscious decision here to keep it simple, and not stray into the task-management world. We do not have intentions to go down the path of traditional task management at this time, or provide support for cascading objectives.
It's a slippery slope to start connecting objectives to each other, allowing multiple people work on the same objective, or creating tasks that result out of objectives. It sure sounds awesome on paper, but it opens up a huge can of worms, both for us as a tool but also for the end user.
If you'd like to share your feedback or have a question, please reach out to us.