Apple chief Cook's quiet cultural revolution

SHORTLY after signing on as chief operating officer at Facebook, Sheryl Sandberg was looking to connect with people in a similar role — No 2 to a brilliant and passionate young founder. She called Tim Cook.

“He basically explained nicely that my job was to do the things that Mark (Zuckerberg) did not want to focus on as much,” Sandberg said of the 2007 meeting that lasted several hours with the chief operating officer of Apple.

“That was his job with Steve (Jobs). And he explained that the job would change over time and I should be prepared for that.”