Sue Gray volition not instrumentality up her station arsenic the premier minister's envoy to the nations and regions, it is understood.
She was initially appointed to the relation aft departing arsenic Sir Keir Starmer's main of unit past month, saying she risked becoming a distraction.
The authorities had antecedently said she was taking a abbreviated interruption earlier taking up her caller position.
A Downing Street root told the BBC: "We deliberation she has made the close decision."
The quality she would not instrumentality up the relation was archetypal reported by the Financial Times and the Guardian.