Sir Keir Starmer has appointed Sir Chris Wormald as his Cabinet Secretary - the head of the civil service and one of the most powerful jobs in government.
Announcing the appointment, the prime minister said he wanted a "complete re-wiring of the British state" and that there was "no-one better placed" to do that than Sir Chris.
As someone who has worked for the civil service since the early 1990s, Sir Chris has plenty of civil service experience.
Depending on your perspective that either makes him an ideal candidate who understands how to fix the system's problems or an establishment figure, wedded to the status quo.
His appointment was greeted with delight by Lord Jim Bethell, a former health minister who worked with Sir Chris during the Covid pandemic.
"When the killer zombies invade, I'd like Chris Wormald at my back," he posted on social media.
Ex-health secretary Sajid Javid described Sir Chris as "brilliant and dedicated" while another former health secretary, Matt Hancock, said he was a "natural reformer" who knew "where the bear-traps are".
However, another former colleague has been less complimentary.
Dominic Cummings, a senior No 10 adviser during the pandemic, said: "Today should be a wake-up call to all investors in UK and young talent.
"The Westminster system is totally determined to resist any change and will continue all the things of the past 20 years that have driven us into crisis."