Ever since her arrival at County General, Kerry had been very ambitious in pursuing higher administrative titles, such as Chief of Emergency Medicine. This was after Dr. Morgenstern's long, extensive absence, that a new position needed to be filled. For a short period she was made interim acting chief of emergency medicine until a suitable replacement was found. Yet, after an incident involving the hiring of a doctor who turned out to be a very accomplished if bizarre non-physician, Kerry's chances were luckily left open. However, she discovered that the hospital wasn't really considering her for the position. When she found out, she immediately quit as interim chief of the ER and Dr. Robert Romano jumped at the opportunity to become interim chief of the ER. At the start of Season 6, word spread that Romano might be up to the position as Chief of Staff, an event that both Kerry and Mark Greene resented and tried to prevent. However, in the end Kerry backed Dr. Romano for Chief of Staff and in return she was given the position of Chief of Emergency Medicine. This would be the first and last time Romano and Weaver completely agreed on administrative policy; in later seasons they were always involved in power struggles, despite both of them favoring administrative matters much more than the rest of the staff