Evworld has a very good article on the recent
purge bloodbath personnel turmoil at start up electric vehicle company, Tesla motors:
On January 10, 2008, the Tesla Founders Blog published a list of employees who had recently been terminated from Tesla. This list included multiple vice presidents, lead engineers, and a variety of other folks from all areas of the Tesla organization. The blogosphere erupted in speculation about the future of the company.
Always worth remembering that good technology does not make a successful company — good people do.