Attila - I couldn't agree more and scepticism is rightly and duly noted. It really is.
My view is that teachers this year are crap and have covered most of the issues up or ignored it cos they can get away with this with DS. Basically because they don't like to look like they need help and, fundamentally, they are a minimum effort job share (NOT that I'm saying all job shares are like this but this one is).It seems things only get done if the one teacher who can work extra hours is paid extra hours to come in on her days off.
Anyway, we also have a very approachable but rather too laid back SENCO so when I have raised things with him, usually in anger, he's been taken aback as he's been told it;s all ok. He, however, is not at all confrontational and probably then goes back to teachers to say 'heh guys would you mind very much doing x,y or z'.
The head is a different kettle of fish. Very little in the way of people skills, very direct, not bothered about upsetting people.If she doesn't agree, she will say it very bluntly. When she does agree and say something needs to be done, people go running.
I am not a naiive new convert though and will watch with 'critical' eyes while this gets done.
I am sending them by SA application too so they can see the arguments they need to put forward.