I loved my career at Goldman Sachs. I believed in business principle number 1: if the client succeeds, our own success will follow. This principle formed the basis for my career and my leadership style.

There are multiple ways to solve a problem and add value. There are seldom right answers. So, you've got to use your abilities to diagnose a situation and use your best judgment on what to do and how to do it. You WILL make mistakes - when you do, admit them and go back and try to fix them. I don't know is often the right answer.

Consistent alignment of capabilities and internal processes with the customer value proposition is the core of any strategy execution.

Authenticity is critical to leadership. That means trying to be yourself - this involves some self-disclosure, admitting what you don't know and being willing to ask questions.

Business and leadership is about the future. What worked five years ago is unlikely to work tomorrow.

Change efforts happen when a firm is out of alignment with achieving its vision. If the organization has broad buy-in on a clear vision, the need for change becomes much clearer. It also helps to over-communicate what you're doing and why you're doing it. Lastly, the leadership needs to spend as much time on "how" changes are being made and "what" changes are being made. Human beings are involved and there are winners and losers.

Reaching your potential is a disciplined process. Like losing weight or getting in shape - there is no final destination and it requires you to dust off atrophied muscles. You have to work at it. If you do, I think you will dramatically improve your leadership.