Treadwell notified the Operating Systems Group and others of his planned new role in a July 16 internal email entitled "Change."
Some excerpts from that mail:
"So when Satya asked me to take a new role, my first thought was 'I love working on Windows! I don't want to work on anything different!' Windows is at the center of Microsoft, the core of the company and our success and the broader computing ecosystem, and we are on the precipice of a pretty amazing period as we get ready to upgrade the world with Windows 10. The strategy is right. The execution is strong....
"Yet when the CEO calls, well, you take that call. I'm excited about what I'll be doing next in C&E (Cloud and Enterprise), and I'm especially excited that I'll be able to keep a strong connection to Windows from the cloud side."
Bhela, his replacement in Windows, joined Microsoft in 1997, when Microsoft bought his previous employer, Interse. Bhela, who most recently was the Corporate Vice President of Outlook, Outlook.com and Exchange Program Management, has been in the Exchange group since at least 2004. He worked on Bing Maps for four years before that, and from 1998 to 2000, was development manager of the Universal Runtime in COM+ 2.0.
I asked Microsoft for more information about Treadwell's new role, but have not heard back.
Phil Smoot, who was named as the replacement for Chris Jones, the most recent head of the combined OneDrive and SharePoint engineering organization, will report to Teper, a Microsoft spokesperson confirmed.
In March, Microsoft officials said Jones would return to Microsoft after taking time off this summer, in an as-yet-unannounced role in the Applications and Services Group.