[ARTICLE] For over 30 years, University of Texas graduate Gay Gaddis was CEO of T3 – The Think Tank – an Austin-based advertising agency and marketing consultancy that she founded and grew into the largest woman-owned agency in the country. With over 230 employees, Gay helped companies like Dell, UPS, Chase Bank, Allstate, Marriott, Pizza Hut and 7-11 evolve from traditional marketing campaigns to sophisticated digital programs. McCombs shares a Q&A profile of Gay’s journey as a digital marketing pioneer.