Microsoft is consolidating the Tier 1 Defense Industrial Base (DIB) to streamline operations and enhance engagement with defense customers into a single Operating Unit (OU) within the US Public Sector Industries team. 

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The DIB market is complex, with over 350K companies and 80K requiring advanced certified data security. Microsoft's unique regulatory advantage and AI capabilities position it well against competitors like AWS and Google. However, our currently fragmented GTM approach and specialized requirements pose challenges that need addressing to maximize opportunities and maintain competitive advantages. 

The Chief of Staff will play a critical role in helping build this new team and enable its long term success.