bwatchbabe
If you took the trouble to check your facts before sounding off, you would know that all instructors have to pass annual competence checks in the classroom and their teaching skills on simulators. They must also pass annual competency checks in the hot seat on the simulators for every course they teach.
Like you, if they fail they are removed from that task immediately and given further training before being re-examined. If they fail again, they are subject to the same procedures as you are.