Tenure: 1 year
Hewlett-Packard elected Leo Apotheker to the position of CEO on Sept. 30, 2010. He replaced interim CEO Cathie Lesjak, who had taken the reins from Mark Hurd, a controversial figure who had resigned in the wake of sexual-harassment allegations.
Hewlett-Packard's fortunes declined when Apotheker took over. The company's stock dropped 40 percent on his watch, thanks to such failed products as the Touchpad, a tablet that was pulled after seven weeks of collecting dust on store shelves. He was ousted just shy of one year after his hire date and replaced by former eBay CEO Meg Whitman.