When I see PaidContent or Blog XYZ telling Marissa Mayer what she needs to do to turn around Yahoo, I shake my head.

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Some days, I just shake my head when I watch how people approach their job searches or career planning.

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"I had to shake my head a couple of times because I really didn't know that was a topic of conversation, " said Matheny, 42.

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"I look back and shake my head, " says Eva, who asked CNN not to use her last name because she plans to apply for graduate school.

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