When Apple announced Monday that longtime leader Tim Cook would be replaced by John Ternus, it published an image of the two executives walking side by side at the company's campus in Cupertino, California. Both men are wearing Apple Watches, dark button-up shirts and blue jeans as they smile at each other a near mirror image. The implication: Ternus, Apple's hardware head, will bring continuity as chief executive officer and help preserve Cook's legacy. But Ternus will have a challenge when he officially takes the job in September. Even as he maintains Apple's device empire and its more than $400 billion in annual revenue the executive will need to take chances, enter new product categories and find the company's footing in artificial intelligence. Mark Gurman, Bloomberg News Managing Editor for Global Consumer Tech, joins Bloomberg Businessweek Daily to discuss. He speaks with Carol Massar and Tim Stenovec.