Lord Andrew Adonis said Boris Johnson’s major cabinet reshuffle leaves the government in a more precarious position than it was before.
He told talkRADIO’s Julia Hartley-Brewer those who were sacked are the “unburied dead” of Parliament.
“There’s now a whole group of what are being called in Westminster the ‘unburied dead’ – all those ministers who’ve been sacked – and who are still very much there,” he said.
“They will of course depart from their graves in September and October when Parliament meets again.”
The former Labour Transport Secretary has refused to support any deal that sees Britain leaving the EU and is calling for second referendum.
He said the change of leader does little to affect the odds of a no-deal Brexit as Parliament has “ample opportunity” to take charge when it sits in September and October.
“It will, I’m fairly confident, in October pass legislation that rules out no deal. And then the question is what it puts in place of no deal which I hope will be a referendum but it could just be another extension of the negotiating period,” he said.
Over the weekend Mr Johnson announced a set of committees, led by him and Michael Gove, to prepare for a no-deal Brexit.
Lord Adonis has urged Mr Johnson to ensure he’s steering talks with European leaders personally.
“Unless a deal is struck with other heads of government, given that this is a mega important set of issues at stake, there won’t be a deal. It’s not going to be struck at official level,” he said.
“You can have some official preparation talks but this is going to have to be done at his level and if he doesn’t get going soon there are only 95 days left before we leave anyway.”