gabe strickerGabriel Stricker, a Google alum who joined Twitter as communications and marketing chief in 2012, is now an alum at the micro-blogging site.

He tweeted today to thank Twitter "for an extraordinary ride" and adding, "it continues to be much more than a company."

Twitter stripped marketing duties from Stricker last year. At Google, he served as global communications and PA director.

The company says it's looking to shift its communications strategy and direction. It promises new leadership there.

CEO Dick Costolo exited last month.