Building your book of business around a language other than English seems like a silly if not limited idea at best.
However, it's not until you wake up to the number of people who start their day speaking languages other than English, things get interesting.
Even though your agency might not be able to become bi-lingual overnight, it can serve as a strong demonstration of what unconventional dedication can achieve.
That's what I talk to Bogus Handzel, of Handzel and Associates, about as he builds process to support it even more.