A special needs "tsar" should be created in Birmingham to prevent parents of disabled children having to wage a "war of attrition" to get a decent education.
The call comes at a time of growing criticism over the way such youngsters are treated within the education system.
A policy of inclusion pursued over the last 20 years has increased participation of children with learning difficulties in mainstream schools.
But parents complain about having to go through lengthy disputes against education authorities for the " statements" that give access to resources for their child.
Once secured, they claim provision often falls short of expectations, with disabled children left under the supervision of unqualified staff in inappropriate schools.
Andrew Sutton, founder of Birmingham's National Institute of Conductive Education, claimed the system was "corrupt".
"What is identified as a child's need is what the LEA has to offer them," he said.
"I see middle-class parents who realise when their disabled child is two or three years old they are being treated rudely by the services.
"They thought services are things that you get. They are used to sitting down and talking to a solicitor for their conveyancing for example.
"What they get is incompetence and rudeness."
Mr Sutton, whose groundbreaking centre for children with developmental problems is world-recognised, said he now advises people experiencing difficulties to get a lawyer.
"You shouldn't have to go to law for it, it is wrong. In other words, the system has become corrupt. It has surrendered to bureaucracy, to formality, financial management, targets."
Earlier this month Baroness Warnock admitted her 1978 report paving the way for today's policy of teaching those with special needs in mainstream schools was wrong.
The Government has closed 90 special schools since 1997 in pursuit of the policy.
The statementing system leaves parents pitched against cash-strapped authorities in a battle to convince them of their child's needs.
"It is a war of attrition," said Paul Kenna, an advocacy worker with the Birmingham Downs Syndrome Association.
"Middle-class families are more likely to get what they want because they are more likely to get a lawyer or write letters to their MP or councillor.
"In Birmingham in particular we need a special educational needs tsar. Special needs thrives on a victim culture which is why there are so many charities."
Birmingham has adopted a flexible approach to inclusion. It still has about a dozen special schools.
It has just approved the fourth co-location of a special school in a mainstream site.
"Our inclusion policy talks about giving children the opportunity to be educated together where ever possible," said a spokeswoman.
"But we do believe that there are various ways to do that."