Interesting article - might have more credibility if it wasn't wasn't written by the head of the organisation that has done so much to undermine excellent teachers and educational standards.
To his suggestion that:
"More "pushy parents" should whistleblow directly to Ofsted about very poor teaching standards"
we should perhaps add:-
"More pushy parents" should also formally complain to Ofsted senior management when their inspectors rate weak or poor teachers with bad results Outstanding(1) because they adopt the latest Ofsted "trendy" teaching methods, whereas excellent teachers, respected by students and parents with outstanding results are often assessed as only Good(2) or sometimes even Requires Improvement (3)"
We have a lots of friends who are teachers and I have lost track of the number of times I have heard complaints that really excellent, inspiring (and often older) teachers have fallen foul of Ofsted inspectors because they haven't adopted the latest Ofsted classroom techniques.