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David Hadeler’s background for teaching at the Temerlin Advertising Institute was honed in a professional career spent managing some of the most respected ad agencies in the country. He founded and managed what would become one of the top 10 agencies in Texas and a Top 25 agency in the Southwest. That agency would twice be named Agency of the Year in the Southwest, and was recognized with hundreds of awards for creativity and effectiveness. The agency grew to include offices in Dallas, New York, Los Angeles, Florida, and Austin, and handled a wide variety of national and international clients.

He has taught at Â鶹Éç as an Adjunct Professor and also as a Professional in Residence since 2008. When not teaching, he consults for a variety of agencies and brands around the country.

He teaches a variety of courses at TAI, including ADV 6399 Advertising Campaigns, ADV 4399 Advertising Campaigns, ADV 1300 Survey of Advertising and others. He has been nominated multiple times for Â鶹Éç HOPE professor awards and in 2023 was named TAI’s Adjunct Professor Extraordinaire. 

Recently retired from agency management, he spends his spare time directing an amateur select baseball program that has helped hundreds of high school baseball players gain college scholarships, with several alumni playing major league baseball.