Tenure: 10 months
Owen Van Natta was at one time chief operating officer at Facebook. He was hired away and began a short-lived position at MySpace in April 2009. At the time, Facebook was in the process of overtaking MySpace as the number one social networking site on the Internet, and Van Natta's mission was to reboot MySpace as an entertainment-distribution site.
His hiring raised understandable concerns. Would he protect confidential Facebook information while working for its rival? Ultimately, it was a moot point. Van Natta quit in February 2010, just 10 months after he was hired and well before much of anything could be changed.