Apparently, reading comprehension is not your forte. I guess I'll explain my abstract comment for you: I never said you can't blame the teachers. I merely stated that all three stakeholder groups (students, parents, teachers) are responsible for the education of a student. But if a student can not or will not take the time to be involved in their education, they will not be successful, no matter how good the teacher is. Certainly, there are teachers out there who are not effective and should be removed, but you can not remove simply remove the unsuccessful students who don't contribute to their own education.  They must be willing to do the work and learn and take an active role in their own education. If they do that, even with a sub-par educator, they can, and will, succeed.