"Tina" wrote

Sometimes, though, people who are consistantly underperforming, if
training doesn't help, need to be discharged, and that can't be done
with tenure protected teachers in public school systems for example.

That is a subject that many people do not understand.

A tenured teacher is not totally protected, from being discharged for under
performing. Most people do not understand that fact.

It is true that it is more difficult to do, but if concrete reasons do
exist, the teacher is informed, written and through a conference with
administrators, of the areas of inadequate performance and possible ways to
bring the performance up to standards. If in one year, progress has not
been made, they can be dismissed.
--
Jim in NC