By Mark Duell PUBLISHED: 08:25 EST, 19 December 2012 | UPDATED: 20:08 EST, 19 December 2012 The BBC deputy director of news today became the latest casualty of the Jimmy Savile Newsnight scandal after he resigned over the fallout from problems with the flagship investigative programme. Acting director-general Tim Davie said he had accepted Stephen Mitchell's resignation this morning with ‘great sadness’. However it soon became clear that still nobody has been sacked over the affair. It came as former Sky News executive Nick Pollard released his review into the decision to drop a report into Jimmy Savile's sexual abuse, saying it was ‘flawed’ and plunged the BBC into ‘chaos’.
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Deputy Director of news Stephen Mitchell resigned this morning
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Three BBC employees disciplined following the McAlpine fiasco but no one sacked
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News director Helen Boaden involved in shelved Savile probe to return top post
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Adrian Van Klaveren who signed off botched Lord McAlpine probe replaced as Radio 5 Live controller by Jonathan Wall but will get new job at BBC
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Newsnight editor Peter Rippon stepped aside after Savile scandal but will also move to another job at Corporation
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His deputy Liz Gibbons was editor on night of botched McAlpine probe and she will also be replaced on Newsnight
A BBC lifer, Mr Rippon has worked on a string of high-profile shows and took over at @placeholder in 2008.