6. Scott Forstall's Departure
In its biggest executive shake-up since CEO Tim Cook took to the helm last year, Apple announced in October that Scott Forstall, head of iOS software, was leaving the company
Forstall, who had been with Apple since 1997 and was largely considered a contender for the CEO role after Jobs, was reportedly asked to leave the company after refusing to apologize for the faulty new Maps app he helped develop for iOS 6. It was also believed that Forstall had a long history of butting heads with Apple senior execs, and the Maps app debacle was just the final straw.
Forstall was said to be a close confidant of Jobs' during his years at Apple. He will continue to serve as an advisor to Cook until officially stepping down next year.