Apple's latest earnings mark the beginning of the end of the Tim Cook era as he gets ready to step down as CEO in September. Apart from eyeing rising hardware demand in the company's iPhone and Mac segments, Wall Street is deeply curious about what the next chapter of leadership looks like for Apple. Cook presided over a nearly 2,000% gain in Apple stock in his 15-year run as CEO, growing the company into a $4 trillion behemoth. Incoming chief John Ternus, with his hardware pedigree, will be