Report: Twitter fires VP of engineering

Just days after the news broke that Twitter lead architect Blaine Cook was leaving the company, it appears that the microblogging start-up has lost another techie: Silicon Alley Insider reported Thursday morning that Lee Mighdoll, vice president of engineering, will depart the company.

"After three months, both Lee and Twitter came to the conclusion that the match was not perfect," Twitter co-founder Biz Stone wrote in an e-mail to Alley Insider editor Peter Kafka. The company had hired Mighdoll in January. "We are seeking to fill this role with a refined search criteria that fits with our plan to scale Twitter as a company and as a service."

Looks like Twitter's notorious outages have claimed another high-profile employee.

A developer at the Web 2.0 Expo in San Francisco downplayed the news, saying that Twitter was probably exercising a "try-before-you-buy developer policy." But it's no secret that Twitter needs to clean up its act--and maybe work on a business model, too.