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David Mackey is an accomplished professional with extensive experience in product management and engineering, currently serving as Commercial Territory Manager at Lennox International since June 2012. Responsible for the largest product category in the Commercial Business Unit, David has successfully increased category revenue and led cross-functional teams to launch new products, resulting in significant incremental revenue. Previous roles included Senior Product Manager and Mechanical Engineer, where David developed industry-leading technologies and drove strategic initiatives to enhance product lines. David holds a Master of Business Administration from The University of Texas at Dallas and dual Master's and Bachelor's degrees in Mechanical Engineering from Washington University in St. Louis.