Microsoft Leaning on GPT: THE REDMOND NICHE (CISCO’S & YAHOO’s GHOSTs) – NeuraPump MBA AI+ Agent, Cloud, SaaS, Porter's Five, Competitive Advantage & Competitiveness, VC Killing Cash Cows, War against Office SaaS by All AI Agents, AI Killed Coders, Too Big to Fall & Giants Fade Out Case Study