The suggestion I heard was that they were actively struggling to retain European staff, though that could easily have been nonsense. There are plenty of areas of engineering at the moment where constant feast and famine and razor thin margins stop you from keeping anything like the number of staff you need on an ongoing salary. If there's a big contract in the offing I'd guess to some extent you have to just bid for it and hope for the best.one has to wonder why the work was taken on in the knowledge they were not staffed up for it.