The legislation creating Great British Railways is in its final Lords stages and could receive royal assent before Christmas, according to rail minister Peter Hendy. The new arm's-length body will integrate track and train under one roof for the first time since privatisation, with Great Western Railway joining the state stable in December and Avanti, East Midlands, and CrossCountry following next year. A headquarters site in Derby has been selected. The structural promise is real: end the contractual blame game between operators and Network Rail, move drivers and rolling stock where they're needed, and stop parking half-life trains in fields while other lines run clapped-out stock. Hendy's anecdote about Great Western's deteriorated ex-Transport for Wales trains captures the absurdity of the fragmented status quo — an industry too incoherent to redeploy its own assets. But the money question looms over everything. Renewal spending has already fallen from nearly £5bn to under £4bn annually over the past five years. The Office of Rail and Road's interim CEO, Feras Alshaker, stated plainly that reliability decline was "expected" given the spending trajectory. Record delay compensation payouts this summer confirmed the prediction. The infrastructure is degrading on schedule. The governance design reveals a tension the legislation doesn't resolve. Hendy insists GBR won't be a "Kremlin in Derby" — power will sit with regional managing directors. But critics from both opposition benches warn the Treasury could override five-year funding settlements at will. Conservative shadow transport secretary Richard Holden framed the core competition starkly: "Will a new train win out over a new hospital? I doubt it." Lib Dem transport spokesperson Olly Glover agreed the benefits "are only going to materialise if the Treasury is willing to sanction more spending." Climate is the accelerant nobody budgeted for. Two derailments in 24 hours this summer previewed what a "super El Niño" event could do to infrastructure already running on reduced maintenance. Extreme temperatures and changing weather patterns don't wait for organisational charts to be finalised. GBR inherits a network whose physical resilience is declining precisely as climate demands on it increase. The leadership question adds another layer of uncertainty. GBR's new chair, John Kingman, must pick a single integrated boss — potentially displacing Network Rail's Jeremy Westlake or DFTO's Alex Hynes, who have been performing a public bromance to signal alignment. The 73-year-old Hendy's eventual departure will test whether political separation from rail was ever structural or merely personal. Fare revenues are projected to finally match pre-pandemic levels in coming years, which helps at the margins. But the fundamental equation is unchanged: Britain is reorganising the management of a railway while underfunding its physical plant, just as climate stress intensifies. The reform addresses coordination failures that were genuinely stupid. Whether it addresses the spending failures that are genuinely dangerous depends entirely on decisions the legislation deliberately leaves to the Treasury.