I would be curious to hear from native and non-native speaking teachers on this listserv about the strengths they perceive they have based on this linguistic identity. There is a lot of battering of American culture and American teachers on this listserv. I'm impressed with the sincere questions of so many ESL teachers in the U.S. who humble themselves for information.
Foreigners can be overly critical of our educational system.
I've studied abroad. I've had excellent instructors there and some poor ones. American culture is distinct. I'm privileged to know a lot of ESL instructors, born in this country, who humble themselves everyday to help immigrants become knowledgeable and comfortable here. Yes, we can profit from successful techniques developed by native foreign language instructors.