"The manager treats ends as given, as outside his scope; his concern is with technique, with effectiveness ... The therapist also treats ends as given, as outside his scope; his concern also is with technique, with effectiveness ... Neither manager nor therapist, in their roles as manager and therapist, do or are able to engage in moral debate. They ... purport to restrict themselves to the realms in which rational agreement in possible—that is, ... to the realm of fact, the realm of means, the realm of measurable effectiveness."