Thread:173.161.119.85/@comment-5278765-20130612061429/@comment-173.161.119.85-20130612064035

"Head" is hyperbole, head and chief are interchangable. Please refer to season 6, during the documentary, both Mark and Derek's titles were Chief of Plastic Surgery and Chief of Neurosurgery. During all of season 6, Webber interchanged Teddy's intro from Head of Cardio to Chief of Cardio on different occasions, especially when the diplomant was being operated on, he introduced Hunt and Altman to the State Department as his chiefs of trauma and cardio. When Tapley in season 4 was a patient, Webber introduced him to Hahn as his chief of cardio. In Season 7, when Karev was pitching to Stark about his Africa program, he referred to him as the Chief of Peds Surgery, and as he replaced Arizona, her title is Chief of Surgery.