Frustrated community members observe that the bulk of career management advice focuses on doing better in your current field or organization rather than finding a new one altogether. People are changing fields all the time, but the usual strategies might not apply. Forget search firms. Don't waste time with newspaper ads.
Most people responding to newspaper ads have experience in the field advertised.
Holding your own in that field is difficult, unless you write a dynamite marketing letter showing how your skills fit exactly with the employer's needs. Again, specially customized resumes and marketing letters might get you some nibbles, but you'll be up against wicked competition with lots of field experience. These strategies are much more likely to get you happily transplanted in another field. Networking Networking is still the strategy most likely to get you where you want to go. Call your college, grad school, or training program for names of alums in your target field.