Microsoft is moving to reassure employees that a reorganization plan by departing Chief Executive Officer Steve Ballmer will go ahead.

Some members of Microsoft's senior leadership team e-mailed their staff Friday to say they remain committed to Ballmer's vision and the reorganization, said two people with knowledge of the matter, who asked not to be identified because the e-mails were private.

The communications follow concern at the software maker that any new CEO -- especially an external one -- won't keep the company as Ballmer laid out last month in the biggest restructuring in more than a decade. Ballmer is refocusing Microsoft on hardware and Internet-based services, in a bid to move the company away from software for the declining personal- computer industry and onto better footing with Google Inc. (GOOG), Facebook Inc. and Apple Inc. (