Google Cloud CEO Thomas Kurian is shaking up the unit’s engineering organization in hopes of gaining more market share more quickly.

Kurian made several changes in the organization’s technical leadership. Kurian wrote an email to his staff. Kurian also replaced Eyal Mannor, who had been responsible for engineering and other key Google Cloud products over the past five years. Manor has worked at Google for almost 15 years. CNBC obtained an email from Kurian.

Kurian sent an email stating that Manor, the leader of engineering and key Google product Anthos will seek a new role in the company.

Brad Calder, who will be responsible for product engineering and design on Google Cloud Platform, will replace Manor. Calder reports to Thomas Kurian. This change Kurian claimed will allow technical teams to work “more closely with me and my Cloud leadership team,” as well Sundar and the Google leadership group on long-term strategies.

“With 15+ years of experience in Cloud, Brad has the proven expertise to take on a broader role to shape and drive the entire strategy for GCP,” he wrote. (Some aspects of Calder’s new role were previously reported by ZDnet.)

Calder will have Pali Bhat (product and design vice president) to assist him in the transition.

This shakeup will help Google Cloud continue growing its market share and streamline an organisation that has grown significantly in the past few years after Kurian assumed control.

With 10% market share in Q2, according to Synergy, the company trails well behind market leader Amazon (33%) and number-two Microsoft (20%), although it has made since Kurian took over in late 2018 — as of Q4 2018, Google had only about 7% share, Synergy estimated.

Kurian wrote in his memo, “We have the opportunity to continue growing our business by expanding out total addressable markets in new ways.” As the market evolves, so do the demands for our products. We need to adapt our organization to accommodate this change.

Kurian said also that Google Cloud Platform has more than doubled over the last few years, while the “demands to shape long-term strategic plans and keep our operations focused on the day-to-day have continued their acceleration.”

His email stated that “as a consequence, we felt it was the right moment to unify our broad portfolio under Brad Calder.”

Kurian also described other changes to the cloud’s data organization and core and system infrastructure team, chief of staff and application teams. According to Kurian, Manor’s exit will open up a position for a leader who can lead the company’s Application Modernization Platform (AMP). Kurian said that until the company finds someone to lead it, Kurian would nominate several leaders who could take on greater responsibility.

Manor has been at least the third person to depart the cloud unit over the past months. Google fired developer relations vice president Amr Awadallah in July after he published a manifesto that confessed antisemitism, which CNBC found came after months of discontent within his reporting leaders. Manor indicated that the manifesto had caused “a few organizational changes already underway”.

Kurian thanked Manor for his help and felicitated the dozen or so leaders who have been promoted to new roles.

Google has not yet responded to the request for comment.