Scott Thompson

January 2012 to May 2012: This one is destined to become a Harvard Business case study one day. Scott Thompson, hired earlier this year, lost his job because of he fudged his resume, falsely claiming to have had a computer science degree. And like Bartz, he had zippo experience in media and advertising -- Thompson's previous stint was at online payment company PayPal.

But in his short time at the helm, Thompson was active. He pushed a controversial patent lawsuit against Facebook that most of Silicon Valley treated with disdain. And he orchestrated a massive layoff but raised questions for not really articulating how he intended to retool Yahoo to remain relevant in our increasingly Google-centric world.

But it was the bizarre inclusion of a phony academic credential which ultimately brought Thompson down. Any other company and you'd say, "Well, stuff happens." But given that it's Yahoo, one can be excused for wondering whether they built the place on the site of an ancient Indian burial ground.