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Andrew Mason, Groupon

Topping the list (and I don’t see any way he gets off it): Andrew Mason of Groupon. He has presided over one of the most botched IPOs and post-IPO accounting and business strategy fiascos I’ve seen – period. The company has been hit by accounting screw-up after accounting screw-up, with the latest warranting a “material weakness” warning from its auditors and an investigation by the SEC.

All of that is overlaid on a business model that I believe simply hasn’t been in line with the original hype. Layer on top of that a level of immaturity and arrogance that is likely to lose credibility on Wall Street if the company doesn’t appear to get its act together – quickly!

Photo: Stephen Yang | Bloomberg | Getty Images