Mark Jarvis, chief marketing officer and a 14-year Oracle veteran, and George Roberts, who worked at Oracle for 13 years and was involved in setting up the company's sales model, have joined the ranks of departing senior managers.
Chief executive officer Larry Ellison announced the moves in an e-mail to Oracle staff.
Jarvis' departure is the latest in a series of changes at the marketing department. Last year Jeremy Burton, senior vice president of product marketing, left Oracle for storage software vendor Veritas.
Rene Bonvanie, a vice president for marketing at Oracle, later followed him.
Robert's departure was unexpected. He had ceded control of North American sales, consulting and application development marketing to Keith Block last year.
Chuck Phillips, an Oracle executive vice president who played an important role in launching Oracle's hostile takeover bid for PeopleSoft, will take over control of the marketing department.
Phillips was recently recruited to Oracle after years on Wall Street as an analyst covering enterprise software.
Joris Evers writes for IDG News Service