Also see Transitioning Google Cloud after three great years | Google cloud blog
"And stepping up to the plate is Thomas Kurian, brother of NetApp boss George. Thomas's arrival at Google is a somewhat surprising development. We had assumed he would be taking a break after ejecting out of Oracle at the end of September.Pick three people you think will replace Google Cloud CEO Greene, then forget them – because it's Thomas Kurian | The Register
Kurian was the database giant's cloud supremo, and oversaw much of its product development. He seems to be a natural fit for Google Cloud: as an experienced enterprise IT vendor executive, he follows in the footsteps of industry veteran Greene in trying to smarten up Google Cloud so it can compete against Azure and AWS for business."