English teacher's pronunciation

Before, students began to learn English as a subject from Freshmen in Middle school. However, this trend changed in 1988 when students began learning English from third grade in Elementary school.
As we gradually entered the global age, Koreans began to focus more on outside of Korea and in learning English.
Today, as the MB government stated clearly that he wants to follow the Western style of teaching method and especially in ENGLISH, Korean students were put into much more stress than before.
Not only students, but teachers are having hard times as well because students these days tend to really care their English teacher's pronounciation.
We cannot blame both sides.
Before, there was no need in practicing speaking because the teachers focused on exams and just the textbooks. However, today Korean parents want their children's speaking to be improved as well because the formal method did not work when meeting a foreigner.
There are many Koreans (especially in Seoul) who have studied abroad and lots of whom have learned from foreign teachers.
These days, students do not welcome English teachers who's English pronounciation is worse than whom they have learned before.
It is not wrong to believe that English teachers should be experts in English and that their English pronounciation skills should be just as well as foreigners.
These days, since the Exam to be an English teacher is so hard and includes speaking Exam, the English teachers today are such experts in English that there is no need for students to worry about their pronounciation.
The students should not just want foreign teachers just because of pronounciation because Korean teachers have other advantages.