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 consider myself a journeyman actor, and I pride myself and look forward to keeping my career choices as diverse as possible because it challenges me as an actor.

For me, that was a defining moment in my career, being at Chelsea, going through what has made me become a man in terms of my career. Even playing on the right wing helped my right foot, making me use it more, making me improve.

Throughout my career I have been an advocate for women, in all aspects of their lives.

I want to see you use your brain. Get the job done efficiently. I want to see an intelligent operator at work. And apart from that, to stay on my good side, just do as you're told.