Earlier this month Don Mattrick left his post as head of the Xbox hardware division in Microsoft for a gaming company named Zygna. Rumors reported that this was due to the impending changes and restructuring of the organization internally. Well early this morning CEO Steve Ballmer sent an email to his staff titled “One Microsoft,” in which he details the new way the company will function.The company will be now be split into a number of divisions starting from Engineering, Marketing, Business Development and Evangelism, Advanced Strategy and Research, Finance, HR, Legal, and Operations. Within engineering there will be four units: Operating Systems, Applications and Services, Cloud and Enterprise, and Devices and Studios. This is key because it is the engineering department that the Xbox One “X1″ is developed in along with all properties related to that.