As Microsoft Build conference nears, the company is slowing on the verge of making some important variations that could either break or allow Microsoft to compete more effectively in some of the markets the company is now struggling to stay afloat. These changes could end up being Steve Ballmer's legacy at Microsoft, and he would prefer it turned out just fine.

Sources close to the situation told AllThingsD that Microsoft CEO Steve Ballmer is expected to make his restructuring plans known to a larger group of senior executives by July 1, and that whatever Ballmer is planning, may not turn out well for some. The source claims executives within the company are very worried since Ballmer is only consulting with a small group of executives high up on the food chain - a sign that someone is about to lose his/her job.

Ballmer is hell bent on turning Microsoft into a devices and services company, which is certain clear when the company announced its Surface line of Windows 8 tablets and the attempt to purchase Nokia, something that could still happen if the price is right for Microsoft.

Some high ranking managers at Microsoft are starting to feel some discomfort since many of them have been a part of the company for a number of years. A major shift in leadership at Microsoft has happened before when Windows chief Steven Sinofsky left the company after a rumored spat with Steve Ballmer

"It feels like it is going to be titanic - that Steve is doing this change for his legacy," said one person close to the situation. "And it's the first time in a long time that it feels like that there will be some major shifts, including some departures."

We understand that the main focuses are set on Satya Nadella, president of Microsoft's Servers and Tools division; Tony Bates, president of its Skype communications unit; and Don Mattrick, president of its Interactive Entertainment division. These executives are expected to rise higher in ranks. However, it is not known what their new roles will be and who they will replace.