SIFT researchers pioneered a human-automation integration architecture called Playbook®, in which humans and automation share a task model – the possible ways to achieve an outcome, and what everyone is supposed to do in the play. The user can select - either at a very high level, or if time permits and circumstances require, at much finer levels – how the tasks will be performed, and by whom. Thus, Playbook allows precise control over delegation of tasks to automation. We maintain that Playbook can be used as a testbed for examining different approaches to supervisory control.