In the week of the 10th anniversary of the collapse of Lehman Brothers we are reminded just how calamitous the global financial crisis was.

A number of leading CFOs recount their experiences of the events building up to and after the Lehmans bankruptcy- including Ewen Stevenson, who as a banker worked on saving RBS and then joined it as CFO.

Yesterday RBS’s chairman admitted it is “unlikely” the government will get back all the £45.5bn pumped in to the bank.

Sir Howard Davies said restructuring costs, losses on loans and selling businesses meant RBS was valued at less than taxpayers paid for their stake.