Delegation and limited visibility on sub-project/items are vital components in structuring and organizing projects and how each team member fits in within the project schedule, sprints and backlogs.
If you delegate a sub-project, a task item or backlog item to a user (or a group of users) they have the ability to create, delete and change everything below the sub-project. Tasks can be broken down, added and removed. A main project manager can, in this way, keep the control over the whole project by letting sub-project managers take control over some parts. In larger projects, this is often necessary to make the project and its organization effective. Delegating is done by right-clicking on an item or sub-project and selecting Delegate to...
Delegating a part of a scheduling project
Delegation to a whole scrum team in agile
Delegation example of the backlog in an agile project