Jobs was intrigued by Berg's concept of a workstation and contemplated starting a higher education computer company in late 1985, amid increasing turmoil at Apple. Jobs's division did not release upgraded versions of the Macintosh and much of the Macintosh Office system. As a result, sales plummeted, and Apple was forced to write off millions of dollars in unsold inventory. Apple's chief executive officer (CEO) John Sculley ousted Jobs from his day-to-day role at Apple, replacing him with Jean-Louis Gassée in 1985. Later that year, Jobs began a power struggle to regain control of the company. The board of directors sided with Sculley while Jobs took a business trip to Western Europe and the Soviet Union on behalf of Apple.