Apple's CEO Conundrum    As the date approaches and Apple begins
its World Wide Developers Conference on June 8, attention is
focused intently on Jobs and what his return means for Apple's
investors, customers, and employees. One of the executives most
affected by Jobs' return is Chief Operating Officer Tim Cook,
who has managed Apple's day-to-day operations during the CEO's
medical leave of absence. Jobs, a survivor of pancreatic cancer,
said in January that he would be out through June.  Cook has run
the company ably in the past half-year, keeping alive debate
over whether and how soon he might succeed Jobs as CEO. Why not
appoint Cook CEO, the argument runs, and have Jobs stay on as
chairman and perhaps take on a secondary title, such as Chief
Innovation Officer?  Promoting Cook would make official the de
facto roles he and Jobs have already been playing. Jobs is
Apple's primary creative visionary, known for his near-obsessive
attention to the minutest design details. Cook, on the other
hand, is renowned f