Arizona Robbins

Arizona Robbins is the current Head of Pediatric surgery at Seattle Grace Hospital, following the death of the previous Head of Department, Dr. Jordan Kenley.

Personal life
She is very much aware of the nature of her job, where Karev and Bailey were unable to handle the idea of loosing children, Robbins reminds them she's seen more than them to the extent she has nightmares about the tiny coffins that her patients will be buried in, and so she will remain optimistic in the face of the tragedy involved in her job.

Career
Following the death of Dr. Jordan Kenley of a heart attack during an exam of Jackson Prescott, the The Chief sets out to replace his head of Pediatric surgery, and unable to secure anyone else, Robbins is hired as  Seattle Grace's new head of Pediatric surgery and in the process taking on all of Dr. Kenley's patients.

Robbins is a clear and rational surgeon and is well aware of the nature of her job and is able to recognise that others will become frustrated by the system and the nature of the cases she has. She is not ruled by her emotions and does what she knows is right, to the dismay and frustration of others.

When Robbins changes Jackson's treatment plan, Bailey is furious as she supported Kenley's decision and believed it was the right choice, however, Robbins disagreed, stating that more senior peads surgeons believe that choice is the right choice. Bailey went to the Chief, clearly expressing her dissatisfaction with this choice, both medical and personel. The Chief tells Bailey that Robbins was top of her class and chief resident and that "She's the best that anyone's seen in a long time, just like you are."

After more clear and vocal disagreements over Jackson's treatment from Bailey (relating to placing him on the transplant list), Bailey wanted a second opinion and Robbins obliged, revealing in the process that she knows the head of Pediatric surgery at Hopkins including being on first name terms with him, all the while berating Bailey for second guessing her judgement ever since she arrived.

Arizona eventually begins to develop a rapport with Bailey, allowing her to remove the clamp in the transplant.