Michael Dell, Dell
When Dell announced in February a deal with private equity firm Silver Lake Partners to take the IT company private, it was cheered by many channel partners. But the deal opened up questions about the health of the technology company, and investors were critical of the $13.65-per-share asking price, which some felt was too low; billionaire investor Carl Icahn threatened the company with "years of litigation" if the Silver Lake deal was approved. Then things got even more complicated as Dell received competing bids from Blackstone Group and Icahn himself. Blackstone eventually pulled its offer, citing a deteriorating PC market, but Icahn is pressing forward and pursuing other offers for Dell –- which could put Michael Dell out of the job.