BRIAN WILLIAMS:

How are you not Steve Jobs?

TIM COOK:

In many ways.  One of the things he did for me -- that removed a gigantic burden that would have normally existed -- is he told me, on a couple of occasions, before he passed away, to never question what he would have done. Never ask the question "What Steve would -- do," to just do what's right.

TRACK 5

Doing right has done well for Tim Cook so far. He's had a good first year on the job - the company's stock is up about 45% during his tenure, and think about this: He's already presided over the roll-out of three iPads, two iPhones and three Macs.

BRIAN WILLIAMS:

It's beautiful.

TIM COOK:

Absolutely stunning. Every detail has been focused on.

BRIAN WILLIAMS:

So, you've got guys whose job it is to get this mesh right to get this curve right …

TIM COOK:

To get it precisely right.

TRACK 6

In fairness, however -- this past year, they haven't gotten everything precisely right.

TRACK 7

Starting with Siri … the small woman who lives in your iPhone.  The service amazed all of us at first -- but then came under criticism for not being … perfect … or as consistently amazing as Steve Jobs wanted it to be.

And then there are the maps ... iPhones used to come with Google maps until they set out on their own --- but Apple's version wasn't quite ready for launch.  It lacked some critical street smarts. And in those early days -- God help you if you went anywhere near the Brooklyn Bridge or the Hoover Dam. It was a rare and public embarrassment and Cook fired two top executives in charge.

BRIAN WILLIAMS: