Paul Gregg & the benefits conundrum
Tackling the benefits system won't be easy.
Understanding it is the first task - there are more than 50 benefits you can apply for and no one seems to really understand how it all works.
Even his detractors give credit to Iain Duncan-Smith for getting out and about on this.
But critics of the changes being planned say we shouldn't underestimate what is being proposed.
According to a former Labour government advisor, it is nothing short of a dismantling of one key plank of the welfare state: a trend, he says, which has been on the rise since the 1960s.
Professor Paul Gregg, of the University of Bristol, worked on the benefit system for New Labour.
In particular, the Employment and Support Allowance (ESA), which has slowly been replacing Incapacity Benefit.
This is a benefit paid at a higher level for the very sick and very disabled.
Admittedly, only after complicated assessments; but it was designed as a support-first, work-second benefit, offering personalised help for those trying to get back into work.
The government wants to move most claimants after a year from ESA and onto Job Seekers' Allowance.
This pays less and has more conditions attached.
Prof Gregg's point is that ESA is one of the last contributions-based benefits being paid out - that you get it in part because of any National Insurance payments you've made in the past.
The idea that you get more from the state if you fall ill because you've paid more in was a founding part of Beveridge's welfare state.
But, like Housing Benefit, it could be seen as a barrier to a Universal Benefit system - hence the attempt to change it.
The government argues that anyone who can't work won't be made to, and that those who need support will still get it.
However if the support you get isn't based on your contributions, but on a residual benefit system designed to protect people in the worse-case scenarios, the question is opened up - why work?
Especially as the shift to means-testing (think Child Benefit) continues.
The debate has only just begun.


I'm Paul Barltrop, Political Editor for the West of England. Pop by for my thoughts on what our politicians are up to.