Is the list of open positions on the website accurate? I sent in an email with a short blurb about myself and a resume a month ago for a couple of positions, and have not heard back from anyone.
I can't speak for all of them but at least some positions listed as "open" are inaccurate. I know because one I emailed about, the open position (It was listed as having 2 staff positions, one filled) slot, and I was told it was already filled. That was months ago, and is (as of this post) still listed as an open position.
I'd recommend going to a meeting and talking to the department you are interested in.