Being accused by US regulators of laundering money for the Iranian government has unsurprisingly given Standard Chartered bosses a PR headache. While the bank’s share price plummeted some 18% this morning. StanChar’s top dogs have responded by bringing in the spinmeisters Maitland  – the same comms team employed by Bob Diamond to spin his way out of the Libor scandal so successfully. The bank is insisting that the decision to axe their old alliance with Roland Rudd’s team at Finsbury today after ten years and replace them with a team of crisis management spinning experts is purely coincidental. But then they would say that…