Gordon Brown's loss of credibility

There is a devastating critique of Gordon Brown by Anatole Kaletsky in The Times:

"There can be no more doubt. Northern Rock is Gordon Brown's Black Wednesday. The Prime Minister, like John Major before him, remains in office, but he is no longer in power. The mini-Budget in October, with its misconceived plagiarism of Tory tax policies, marked the beginning of the end, when Mr Brown handed over his hard-won economic credibility to David Cameron and George Osborne".