If you have actual data to support your argument and refute mine, please post/ link it.  

And don't misrepresent me on teachers, unions and the public service in predictable left wing union bully boy fashion.

I am not anti-teacher, have given many management seminars, have made a lot more money than you but on my own merits in an intensely competitive consulting environment, and recognize that despite the teachers unions some capable, dedicated, worth the money teachers still exist.

However, I am against monopoly public sector unions with the right to strike and hold taxpayers and students to ransom, the right to spend millions of dollars on dishonest attack ads against parties that would not be weak and corrupt enough to give them everything they demand, and the right to protect incompetents and ensure they remain on the payroll and get paid the same as competent and even great teachers. 
  
FDR wrote that collective bargaining in the public sector was unacceptable - a wise man.