DMA - nobody is doubting teachers don't work hard and care and try hard.
That's not the same as being effective!
Or the same as knowing how to do your job!
Most of The teachers I have encountered, at 3 schools, are incredibly defensive.
Just this week the HT suggested I might want to take DD out of her school
- all because I (once again) pointed out I was worried that DD (Y4) can't read yet, and asked what her teacher was going to do about it 
No way was that an acceptable way for the HT to speak to me.
Do you teach all your kids to read - or do you teach all of them besides the ones with dyslexia, SEN, EAL, LAC........
I know my school only teaches the 80% that are easy to teach. And I know they also think they're doing a brilliant job and Gove / OFSTED measuring them is the problem.
The school I'm a governor for / my 3 go to is so unselfcritical it's unreal.
They will never take a critical look at what they're doing and learn from their mistakes.
Which, as a professional in a diff profession, I can't believe.
My team at work has a meeting every 2 weeks where we look at what we did wrong in the last 2 weeks and how we can improve our practice.
As a governor I have sat in a school improvement meeting - and never once did they ask what went badly last year!
And, when I specifically ask that question, in private, of the literacy co-ordinator - she still can't answer it. .
How can they improve if they won't learn from their mistakes?
But the whole culture of teaching is praise centred and not critical.
Unbelievable.