CEO Steve Ballmer is plotting a major Microsoft restructure, according to numerous sources.
A number of long-serving execs are said to be afraid they might receive the chop, since Microsoft's chief has kept the majority of them well away from his plans.
Instead, Ballmer has reportedly kept his vision very private, consulting only with a very select team and some Microsoft board members.
"I feel like it is going to be titanic – that Steve is doing this change for his legacy," a source told All Things D. "And it's the first time in a long time that it feels like there will be some major shifts, including some departures."
In an annual letter to shareholders in October, Ballmer wrote of his desire to transform Microsoft into a "devices and services" company.
The new arrangement could see several senior managers take up larger roles and various business units move over to fresh divisions. As is the case with most major reorganisations, significant departures could also be on the horizon.
The Verge reports that the new-look Microsoft could see the consolidation of the Windows and Windows Phone operating systems. As things stand, apps running on both platforms still need to be modified by developers.
Ballmer is no stranger to major executive decisions, having sent former Windows 8 chief Steven Sinofsky on his way just a fortnight after the Windows 8 launch – a move which shocked the tech world.
Details of Ballmer's big reshuffle could be announced as soon as 1 July.