Do you have a guy there that goes by the moniker of "The Observer"?. There's also this really educated teacher by the name of Bea. Did you hire her too? If so, I can fully understand your frustration.

Why don't you raise the wages but screen out teachers harder? You see, that is against market principles. Schools lower the wages to make more money and hire these charlatans like "The Observer".

Wage deflation will occur as long as there is ample supply of these kinds of people. In short, being qualified is not what schools want, its a white face to put on a school's flyer and make a fast Yuan. In an ideal situation, you would raise the wages and raise the standards of teachers you select. That is, you would require degrees, certifications, experience and last but not least, a trial lesson.