We bought a player who we knew couldn't get a work permit. We gambled on the fact that he would in the future, but it looks distinctly possible now that he won't. There's no hindsight involved, and it absolutely is our 'fault' if he never gets one. If we sell him for what we paid or more then there's no harm done and it just goes down as a punt that didn't work out. If he ends up draining a wage for a couple of years and then released on a free, it goes down as an embarrassing cockup but not really the end of the world.