Blair has some questions this week and David has answers. The topic is profit - what it is and the targets firms should be setting.

David offers to help Blair remember all the times he's been wrong over the past couple decades. Then Blair says he'll be happy to reveal all of the places he's wrong now but doesn't even know it yet.

David reveals some of the science behind the extensive research he has done over the past couple decades to develop a key part of his Total Business Review. Blair asks him to explain the three roles principals cannot let go of, along with the three roles they should give up first if they want their firms to really thrive.

Blair revisits David's new book, interviewing him on the two chapters that cover the important topic of positioning: "Distinguishing Between Vertical and Horizontal Expertise," and "Principles for the Less Exchangeable Positioning of Expertise."

David and Blair discuss a list of words Blair came up with that you should avoid to keep you out of trouble and in control of the buy-sell relationship.

Blair needs a vacation. And David is blown away by how little time principals take off.

David asks Blair to describe his work and his passion for the creative entrepreneurial community, and they discuss how where he lives has such a huge impact on what he does.

The issue of how principals manage their employees continues to pop up for David year after year, and Blair is worried that he might have this problem in his own firm.

Blair restrains himself from going off on a rant about who his clients choose to learn from.

Blair interviews David about who he is and why people should pay attention to what he has to say - if they should at all...