Schools that run the FIC will generally try to recruit people that they have trained, mostly for continuity. However, at the moment there is little new blood coming through the system so schools can't afford to be too picky.
I did an IR at Aerofan a couple of years ago and met a German chap who was doing the FIC while I was there. He got a job straight after qualifying with a school at Kemble. I spoke to him recently and he is still there.
Oh, and my Spanish IR didn't prove to be a barrier to me getting a job flying single pilot IFR around Europe, either!