The Office Productivity Applications group which will be led by Antoine Leblond and will have responsibility for the Office client teams and shared services. The Office Business Platform group will be headed up by Kurt DelBene and will have responsibility for SharePoint, Groove and Project.
"As (Microsoft) considered the approaches to filling Steven's role as lead of Office development, they concluded that the organization would benefit from a slightly different model for Office engineering leadership moving forward," Microsoft said in a statement.
The Redmond, Wash.-based software makerthat it was shifting Sinofsky to head development of its Windows operating system.
The decision to split his duties was announced internally earlier Wednesday by Microsoft Business Division President Jeff Raikes. DelBene and Leblond were not made available for comment.