Interesting parallel
The experience of many school support special education teachers and NHS staff (Speech and Language/OT/physio etc) is quite similar.
"Have you tried <well established strategy>"
"Oh yes, we've done that"
"OK we'll book an appointment for my next visit"
Cue several hours of paperwork; parental consent forms, creating intervention records etc etc for all concerned.
Specialist arrives in school some days/weeks/months later (depending on length of waiting list). Can see no trace of the recommended strategy ever have been tried. Speaks to support staff/class teacher.
"Oh yes, we tried it one afternoon last term. It didn't work."
"You do know this has to be done 10 minutes every day for a month and then reassessed......"