Apple's new CEO, John Ternus, takes over from Tim Cook at a pivotal time for the company

Ternus faces challenges that will force him to step outside his comfort zone in hardware engineering.

When Tim Cook became Apple’s CEO in August 2011, he had big shoes to fill. His predecessor, Steve Jobs, was widely considered one of the world’s greatest innovators. Now, 15 years later, Cook has catapulted the company to stratospheric heights by forging his own path. His successor, hardware engineering chief John Tern

How Tim Cook made Apple one of the world’s most valuable companies | CNN Business  CNN