More than 90 Labour backbenchers have delivered a blunt message to Andy Burnham: the government's reindustrialisation ambitions will collapse unless they are anchored in statute, driven from Manchester, and backed by institutional machinery the state currently lacks. The briefing paper, seen by the Guardian, amounts to an internal diagnosis that decades of deindustrialisation and deregulation have left Whitehall structurally unable to execute the industrial strategy it is now promising. The core charge is institutional capacity loss. The state, the MPs argue, has become "less knowledgable about the state of the economy and our businesses, unable to comprehensively plan and slow to make decisions." This is not a critique of political will — Andy MacNae, the group's chair, explicitly credits Burnham and Healey's commitment — but of the civil service's acquired muscle memory, which defaults to city-centric growth policy and treats manufacturing-led strategy as ideological nostalgia. The group's proposed remedy has three pillars. First, a Reindustrialisation Act that sets legally binding targets for manufacturing job creation, giving Parliament a lever to hold ministers accountable. Second, they want first secretary Louise Haigh installed as the reindustrialisation lead, operating from No 10 North in Manchester — the outpost Burnham established in July that has already absorbed some growth-policy functions. Third, they want the National Wealth Fund recast as a Reindustrialisation Development Corporation, shifting its mandate from opportunistic investment in promising businesses to systematic capital provision for rebuilding industrial capacity. The political context matters. John Healey, delivering his first budget on Wednesday, used his Labour conference speech to promise a "new age of industrialisation," staging the moment with a young apprentice from the Mersey ferry programme. Labour's industrial strategy under Starmer identified eight growth sectors including advanced manufacturing, clean energy, and defence. The rhetoric is already in place. What the backbenchers are saying is that rhetoric without institutional architecture is performative. Steve Yemm, MP for the former mining seat of Mansfield, names the enemy explicitly: "Too many in Whitehall still treat industrial policy as dangerous nostalgia." Lorraine Beavers, Blackpool North and Fleetwood, reinforces the point with a practitioner's verdict: "Whitehall doesn't fix a problem unless it is told to." These are not ideological radicals. They are MPs from post-industrial constituencies who have spent two years watching the gap between conference speeches and departmental behaviour. The demand to base reindustrialisation oversight in Manchester rather than London is the sharpest structural proposal. It tests whether No 10 North is a genuine power node or a prestige outpost. If Burnham's office can direct industrial policy — procurement, education, capital allocation — from outside Whitehall, it represents a real shift in how the UK state operates. If it cannot, No 10 North becomes another devolution symbol without devolved authority. The nationalisation of British Steel is cited as proof that the government is already making industrial interventions that cut across departments. The backbenchers' argument is that ad-hoc interventions without a statutory framework produce incoherent policy. Whether Healey's budget contains any of the institutional machinery they are demanding will be the first real test of whether this pressure is registering.