Yahoo: 20 years of hits and flops

After unceremoniously firing CEO Carol Bartz (by phone), Yahoo hired former PayPal president Scott Thompson in January 2012.

Thompson lasted just four months on the job. He was quickly fired after a résumé scandal erupted, in which he told Yahoo that he held a bachelor's degree in both accounting and computer science from Stonehill College. His degree was in actually in accounting only.

But Thompson hung around just long enough to lay off 14% of Yahoo's staff, eliminating about 2,000 jobs.