Central to Mr Field’s critique is his prediction that Mr Duncan Smith’s “welfare to work” programme will not force a generation of ill-educated British youths into employment.
Instead, the new jobs will go to those workers – many of them immigrants – who are only temporarily unemployed thanks to the recession.
Lazy benefits claimants will find ways of manipulating the new Universal Benefit to their advantage, just as they have managed to sidestep every other welfare reform.
They “know from past experience that governments leave them alone”, says Mr Field.
This is a pessimistic assessment – too pessimistic, Mr Duncan Smith would argue. His reforms take the hugely important step of making it less profitable to stay on benefits than to work, and they do impose penalties on claimants who refuse to accept the Government’s helping hand.
Also, the Universal Benefits offers a simplification of welfare bureaucracy that is inevitably expensive to implement in the short term.
It was adopted by the Coalition only after the Work and Pensions Secretary fought a tough battle with the Treasury.
We are glad that Mr Duncan Smith won that battle: a radical stripping-down of welfare is long overdue.
On the other hand, there is merit to Mr Field’s arguments. But, rather than seeing them as the foundations of a Right-wing Labour welfare reform programme, as he rather implausibly does, we think they point towards the eventual shape of Conservative policy.
Mr Field is absolutely right to point out that British public opinion is now opposed to means-tested universal benefits and needs-determined social housing.
Increasingly, taxpayers in many countries are hostile to undeserved benefits.
Ultimately, as this (TORY – BTC) newspaper has argued, legislation must create a moral obligation to work and shame the feckless.
But perhaps the time is not yet ripe for a Tory politician to spell out this message so bluntly: it would be drowned out by the hysterics of the liberal media.
And that is why, though we think he is too harsh on Mr Duncan Smith, we are glad that a Labour MP has spoken out.