Thanks so much for your answers. To be honest, I was kind of anticipating responses along these lines. As much as I've enjoyed, and been personally enriched by, my theology studies, I guessed it was a long shot that I might use that alone to switch fields.
(Right now, I'm waist-deep in a research paper for my final course. I'm comparing Ratzinger and Kung's hermeneutic values by examining their reactions to two Vatican II documents. It's a fun one!)