Google continues to lose top-rank officials as the company's Chief Business Officer, Nikesh Arora, joins SoftBank.

Google may be big on product and services but it is not able to keep its management intact. One of the Google's most senior executive bid his farewell to the company on Thursday. Nikesh Arora, Google's Chief Business Officer, announced his departure from the Mountain View, California-based tech company to take the reins at SoftBank as the vice chairman and CEO of Softbank Internet and Media subsidiary.

The transition was announced as a part of company's earnings release Thursday, GigaOm reports. Arora's departure comes after almost ten years since he joined the company. He was promoted as the SVP and business chief in early 2011 and has played a major role in the company's earning calls. While Arora tweeted his farewell to Google, CEO Larry Page confirmed his departure and announced Omid Kordestani as his replacement.

"After almost ten years, Nikesh Arora our Chief Business Officer, has decided to leave Google to join one of our partners, SoftBank, as Vice Chairman of SoftBank Corp. and CEO of SoftBank Internet and Media," Page wrote in a Google+ post, Friday.

"Omid Kordestani, who was our business founder and led our sales teams for many years, will be stepping in to lead our business organization for now." Kordestani worked as an advisor to Page since stepping down from his Senior VP of Worldwide Sales post in 2009. Page puts his trust into Kordestani's capabilities to lead the team after Arora.

Arora's departure is the latest in a string of management-level attritions at Google. Over the years, the company has lost some top-rank executives including Sheryl Sanderberg who is now Facebook's COO, Marissa Mayer (Yahoo CEO), Vic Gundotra and most recently Google X director and Glass Head Babak Parviz.