By Tim Montgomerie
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PR Week's David Singleton has broken the news that Tim Chatwin, the Prime Minister's Head of Strategic Communications, who has worked closely with Steve Hilton since the start of the Cameron project will be leaving 10 Downing Street after this year's Manchester Party Conference. Chatwin will be moving to work for Google in California.
Singleton also reports that James O'Shaugnessy may be moving on too. O'Shaughnessy is another person who has been inside Team Cameron since its early days.