K. Douglas Deck resigned as president and CEO of Munson Healthcare, Traverse City, Mich. The board accepted Deck’s resignation May 6, and it was effective immediately. He was replaced by Edwin Ness, 47, president and CEO of Munson Medical Center, who for now will retain his responsibilities over the hospital. Munson has affiliation agreements with four additional Michigan hospitals and has been in merger talks with Spectrum Health, a four-hospital system based in Grand Rapids, Mich. Deck, 60, took leadership of Munson in late 2005. A Munson spokesman said the decision to leave was Deck’s, and the spokesman said he was not able to elaborate. Board Chairman Tom McIntyre praised Deck in a news release announcing the development. “Doug is a true professional, and we thank him for his years of service to Munson Healthcare and the people of Northern Michigan,” McIntyre said. Ness joined the system in 1999 as COO and executive vice president of the flagship hospital, becoming its president and CEO in 2005. … Francisco “Frank” Perez announced he will retire next year as CEO of Kettering Health Network, Dayton, Ohio. Perez, 66, became president of Kettering Medical Center in 1994. Under his leadership the hospital grew into Kettering Health Network, adding hospitals in Dayton, Xenia and Miamisburg, as well as recently making plans to acquire Fort Hamilton Hospital, Hamilton, Ohio. The system is conducting a national search to replace Perez when he steps down, which is planned for May 15, 2011.