When the head of Revenue and Customs resigned over the catastrophic loss of two data discs containing millions of names, there was considerable praise that Paul Gray had done something that all too many other people in public life fail to do. He had taken responsibility and paid the price. Some also felt that his resignation offered some protection to the Chancellor Alistair Darling. However, Mr Grey's 'exile' from civil service activity lasted precisely thirteen days. He is back working for Sir Gus O'Donnell at the cabinet office - on projects to "develop Civil servants skills".