Yes, I also think it is rather naive to insist on native speakers to occupy language teaching positions. When I lived in Spain, the local people would come to ME (a Dutch national) for advice on spelling of their language. I have learned to teach Spanish as a foreign language to non- native speakers of Spanish. Most Spanish have not learned this. Neither did I learn to teach Dutch as a foreign language to foreigners. After one has learned how to teach a language as a foreign language, one can work VERY hard to get to near native speaker level. If one, on top of all this, is a truly committed teacher, then one is a very good teacher, isn't it?