[clivehawkins]

Here at the university the non-native speakers teach up to and including pre-intermediate (we follow Headway to give you some idea of the level). Many of them have followed advanced courses with me and I'd say for the most part they were capable enough of teaching pre-intermediate. As others have said before, I strongly agree that it's most important to have a teacher that knows how to teach. I've worked with mother tongues who frankly shocked me with their appaling attitude and conviction that being English was sufficient to teach. The non-native speakers, generally, put a lot more effort into their work to make up for the fact that they are non-native.