Another crisis, another IMF summit: but unlike 2008, the delegates are disunited

When the world's finance ministers and central bank governors gather at the International Monetary Fund in Washington this week, it may kindle memories of another meeting, also held against the backdrop of a global economic crisis, in autumn 2008. Then, as the aftershocks from the collapse of Lehman Brothers ripped through financial markets, central banks coordinated drastic emergency rate cuts, and the UK chancellor, Alistair Darling, urged his G7 counterparts to emulate the UK's approach and shore up stricken banks. Policy mistakes, including lax financial regulation, were partly to blame back in 2008 - but as this week's IMF and…