you basically have nothing to lose for trying. the fact that you tried, you will get somewhere no matter what.
so suppose that you don't get the job that you wanted, your resume may be put through other departments and you may get a job in a different position.
or sometimes, just the fact that you tried, you have learned something new and gained a new experience that you can take with you to use somewhere else to put yourself in a better position in life one way or another.
in other words, try your gawd dang best....and if you still don't get what you want, you'll still receive a shiny golden star sticker from someone, somewhere
gluck!