Barclays must repair 'systematic dishonesty', says former boss Martin Taylor Mr Taylor told BBC Radio 4's Today programme that the bank should explain who knew about the practices. The question of how high up knowledge of this goes is something only Barclays can answer. I think they should answer," he said. These organisations are very large, as I know myself, and the chief executive doesn't always know everything that's happening in the organisation, though he's responsible for setting the tone of the organisation. But somebody at senior level somewhere will certainly have known. I can't believe Barclays haven't identified who that is. They've been investigating for years, so have the FSA, and no doubt they will take appropriate action," he added. It's really for the board to decide whether Bob Diamond, who has amazing leadership qualities and huge personal following in the organisation, can be the person to turn the page on this, or whether he's part of the problem. Martin Taylor, a former chief executive of Barclays. Mr Taylor's tenure at Barclays was marked by problems at investment bank arm BZW and a perception that he disliked investment banking. On leaving Barclays, Taylor became chairman of retailer WH Smith from 1999 to 2003 and an international adviser to investment bank Goldman Sachs from 1999 to 2005. He has been chairman of Swiss agrochemicals business Syngenta since 2005. Libor - the London Interbank Offered Rate - is the rate is used to fix the cost of borrowing on mortgages, loans and derivatives worth more than $450 trillion (£288 trillion) globally. The FSA fined Barclays a record £60m, saying staff at the bank had repeatedly made false submissions to help set Libor. Shareholders and political figures are among those calling for Mr Diamond to resign in the wake of the scandal. "If Bob Diamond had a scintilla of shame, he would resign," he said. Lord Myners, former City minister, told the BBC's Newsnight that any Barclays staff responsible for manipulating the Libor rate should face the prospect of going to prison. "This is the most corrosive failure of moral behaviour I have seen in a major UK financial institution in my career," he said. There is no suggestion that Mr Diamond or other executive directors knew what was going on at the bank.