There's no such a thing; just the same, managers can't be taught how to empower employees. Certainly, managers can learn how to reduce their own side effects on employees empowerment, just the same as one learns to drive cars and gets a driving licence. But this does not mean he'll be a Formula One or Indy or Rally driver. You quote Patton, good: Victor D. Hanson also quotes Epaminondas and Sherman as positive benchmarks, and Alexander (the Great) as a negative benchmark. A manager is a manager is a manager: his or her psychological subtleties, labyrinths, intricate conducts are often severe impediments to effective relationship with the employees, let alone to empower them. And when the often-encountered inferior shouts "the emperor is naked!", well, that's a real beginning: of the End. We keep mending organizational cloths with techniques; the word "art" is however more and more often used: maybe we'll have to look for "management artists", or "management designers", to wear really new organizational cloths. Thank you.