Horowitz, vice president of product management since 2008, announced the move in a Google+ post late on Sunday.
"It's important to me that these changes are properly understood to be positive improvements to both our products and how they reach users," Horowitz wrote.It was not immediately known what the company called "streams" product.Sundar Pichai, Google's senior vice president of products, told Forbes last week that the two important parts of Google+, Photos and Hangouts, may soon be separated from the main product."I think increasingly you'll see us focus on communications, photos and the Google+ Stream as three important areas, rather than being thought of as one area," Forbes quoted Pichai as saying. Google+ marked the company's most concerted effort to catch up with Facebook Inc