Meet Nest's new CEO
In his place, Nest, which is owned by Google parent company Alphabet, announced that it has hired Marwan Fawaz.
Compared to Fadell, a former Apple executive who often gave interviews to the press, Fawaz is not as much of a known quantity in Silicon Valley.
So who is he?
Fawaz actually worked at Google before.
He was President of Motorola Home, the cable set top box business that Google summarily sold off in 2012, shortly after it had acquired the Motorola Mobility business that Motorola Home was a part of.
He also served as executive vice president of strategy and CTO of telecommunications company Charter Communications, according to his bio. In 2011, Fawaz left Charter Communications with a $5.5 million severance package after the company filed for Chapter 11 bankruptcy.
"Marwan's extensive technology and engineering knowledge, his experience with global service providers, as well as his background in connected home platforms will be valuable in continuing our trajectory, especially in scaling the business, working with our partners, and supporting our enterprise channels," Fadell said in his post.