Even though I entered this role to help NY Ad Agencies build their diverse talent pool the most enthusiastic outreach has actually come from some of the smaller agencies from smaller non-urban markets. There are some major agencies doing fabulous creative work that are sincerely interested in building a more diverse talent pool.
It is really hard to get talent to want to move to any market that is outside of the top 10. I definitely understand. Quality of life, balance, finding a mate, having a social life and seeing folks that look like you are crucial. Not to mention, somewhere that you can get your hair taken care of can not be minimized. As someone that has never moved out of the NY tri-state area, I get it. But, investing 2 years in your career can really be invaluable to breaking into the business. These agencies can provide the training, pedigree and opportunity to work on general market business that will get you noticed and add to your credentials early in your career that will help you throughout if you strategize correctly.
There was a great young copywriting talent that I heard about (from many people in the industry) that shared his story during Advertising Week. Devin Heatly at Uniworld has an audio interviewWADV Radio Devin Heatly Interview and talks about how passionate he is about advertising and didn't major in advertising but wanted to break through. His interview really provides a great story of doing what is necessary to get noticed by starting out at a well known agency in a smaller market. He also happens to be the winner of the Mercury Award for Burger King.
Don't sleep on the smaller markets, they may hold the key to major market success!