There is almost nothing more painful for a leader than seeing good people leave a growing organization, whether it's a priest watching a Sunday school teacher walk out the door or a CEO saying goodbye to a co-founder.

Anybody, and any company, can have a big run of success once, but if you're going to repeat that over time, you need to be aware that you need to keep learning.

I have yet to meet members of a leadership team who I thought lacked the intelligence or the domain expertise required to be successful. I've met many, however, who failed to foster organizational health. Their companies were riddled with politics, various forms of dysfunction, and general confusion about their direction and mission.

The truth is that intelligence, knowledge, and domain expertise are vastly overrated as the driving forces behind competitive advantage and sustainable success.

I don't see myself as a hero because what I'm doing is self-interested: I don't want to live in a world where there's no privacy and therefore no room for intellectual exploration and creativity.

Millennials give comics the kind of adulation past generations reserved for musicians. We respect Lady Gaga. But we'll travel hundreds of miles to touch the hem of Jon Stewart's robe.

You travel the world and you talk to people about Jos Buttler, and they rave about this lad. I don't like massive comments, but he'd have to be up there with the three or four greatest white-ball players of all time. You're talking Virat Kohli, AB de Villiers, MS Dhoni, Viv Richards.

As much as most of the actors were kind of curious to know what their character meant in relation to the script and to the plot, they really were quite happy to be part of the adventure of not knowing.