Keeping in mind that this book was published a decade ago, I didn't expect it to be perfect and it wasn't.  I wish the core ideas were better adopted in Corporate America today, and overall this is one of the better written and more effective business and career development books I've read.  The main pitfalls I believe are in the instances where Hewlett puts the burden on women and people of color to conform to what is a biased environment, rather than challenge leaders to check their own bias in these instances.  Mainly in the chapter on Executive Presence, Hewlett starts with a great foundation for what drives executive presence but ends with tips that essentially uphold the rules and standards created by and for white men.  And this is after acknowledging how people of color especially are constantly having to choose between meeting this higher set of standards placed on them to conform and being their authentic selves, cultural or religious identities included.  I would be interested in an update from the author, including what the CTI has accomplished since this book was originally published.