I finished reading Marissa Mayer and the Fight to Save Yahoo by Nicholas Carlson this weekend. As fascinating as it was reading about all the various CEOs that came and went prior to Marissa, one thing stood out.

Each time a CEO was brought in, it was for certain skills and never for their leadership ability. Yes, bottom line and ROI is important and yes, a CEO needs to know enough to be able to give input on the company's strategy and know what to look for in senior-level hires, but a CEO also needs to be the heart and sole of the company and brand. 

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