Lenovo is parting company with Rick Osterloh (pictured), head of its Motorola Mobility unit, in line with a broad restructuring at the Chinese tech giant.

In a statement, the company said that the executive had “decided to leave” the company, and that “his steady leadership since Lenovo’s acquisition is appreciated”.

Lenovo has been working to integrate the acquired Motorola Mobility business with its own Mobile Business Group (MBG) for some time, with Motorola taking on an important role in the group.

Indeed, the company today said that “the talent and innovation capabilities in Motorola are among Lenovo’s strongest advantages in mobile, so the Motorola teams will continue to enable the entire MBG, including in China”.

But the partnership has yet to deliver rewards in terms of smartphone market share.

Under the new organisation, Xudong Chen and Aymar de Lencquesaing will become co-presidents of Lenovo’s mobile unit.

The company said: “The mobile markets in China and the rest of the world are very different, so Chen will focus on the China mobile business, leveraging his deep experience in China to help Lenovo become a leader in this major market, while de Lencquesaing, formerly head of Lenovo North America, will use his global experience in complex, competitive tech industries to drive rapid growth in emerging markets and help Lenovo breakthrough in major mature markets.”

Also, Lenovo’s PC Group has been re-christened as its PC & Smart Device Business Group, responsible for “PCs, detachables, tablets, phablets, gaming and smart home products across Windows, Chrome and Android based products”.

It said that this will “fuel Lenovo’s ability to continue to grow share in the consolidating PC market, while focusing on the rapidly emerging smart device market”.