I too share you distrust of the school system here in St. Mary Parish.
I understand that the profession of teaching requires so many dedicated hours, and that the labors of a great many teachers in their day to day battles, go unnoticed by so many outside the classroom.
 
However, one of the dirty little secrets of our system is this;  bad teachers still slide through the system!  They hide behind tenure, contracts, unions, and false charges of descrimination, sexism, racism, etc...  Principals cant remove them, they're simply stuck with them!  Every child that comes through the class of a poor unmotivated teacher, is scarred and suffers as a rewsult of that bad teacher, well into the next year in their next classes.  Teachers know who these persons are...and they also know why they are kept in the system!  Principals are usually stuck with them and can't make the needed moves to get better teachers into their schools!  The main office knows if they fire them, a lawsuit will follow and will cost money maybe even losing.
There are a lot of kids slipping through the gaps from start to finish, and we're letting them down.  We're letting the good teachers and principals down too!