Expatriates play

Expatriates play a key strategic role in managing the flow of information between the company’s headquarters and its foreign subsidiaries. However, after the expatriate assignments (usually a few years), quite a few expatriates who returned home (called repatriates) would end up quitting the company upon return with various dissatisfactions back in their home office. What are the major sources of their dissatisfactions? And what should the headquarters do to keep from quitting?