NEW YORK--(BUSINESS WIRE)--Elliott Management Sends Letter to Board of Directors of AT&T: Letter Highlights Compelling Value-Creation Opportunity at https://activatingATT.com. : “Activating AT&T” Plan Recommends Increased Strategic Focus, Improved Operational Efficiency, Disciplined Capital Allocation, and Enhanced Oversight NEW YORK--(BUSINESS WIRE)--Elliott Management Corporation (“Elliott”), which manages funds that collectively beneficially own $3.2 billion of AT&T Inc. (“AT&T” or the “Company”), today released a letter outlining a compelling value-creation opportunity at AT&T.