- Apple surprised the markets by announcing Tim Cook would step down as CEO this summer, and John Ternus would become the new CEO. - Cook will still be around, becoming the Chair of Apple. Over the course of 15 years, Cook took Apple from a $350 billion company to a $4 trillion company. - Revenue went from $108 billion to $466 billion this year, and its services business went from non-existent to $123 billion in sales. - His greatest triumph was around supply chains and logistics, keeping China on the company's no matter the state of relations with the US government. - Ternus was the head of hardware before being tapped to become CEO and has been with the company since 2001. - His appointment comes as AI has burst onto the scene, and Apple doesn't seem to have a player in the game.