John Sculley -- once the CEO of Apple between 1983 to 1993 -- now admits that his hiring at the company was a "big mistake," according to a Cult of Mac interview. Formerly the president of Pepsi, Sculley was lured over to Apple because Steve Jobs was thought to be too young to be a CEO, and also because the company's board of directors hoped marketing success at Pepsi could be parlayed into mass-marketing computers. Jobs and Sculley were supposed to "work as partners," the latter notes, with their responsibilities split between technical issues and marketing.