Actually far more Cathy and Emirates guys move to BA than the other way round. This month I am flying with two ex-Cathay and one ex Emirates. Grass always seems greener on the other side of the fence. In my humble opinion the chaps that are constantly moving airlines seem to lose out long term. It was always thus.
Having said that I don\'t think I have ever flown in BA with an ex Easy pilot! Maybe that points to Easy being a good employer, food for thought.