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BBC reports identify key players
These are some of the key players named in the reports published by the BBC.
:: Helen Boaden, director, BBC News
The BBC veteran started her career in radio and rose through the ranks to become head of news at the corporation.
An award-winning reporter, she is ultimately responsible for shows such as Today, Newsnight, Question Time and Panorama.
:: Peter Rippon, Newsnight editor
A BBC lifer, Mr Rippon has worked on a string of high-profile shows and took over at Newsnight in 2008.
He faced criticism for falling audiences and has seen some high-profile figures leave the show.
He stood aside after his explanation in a blog about why the investigation into Jimmy Savile was pulled was criticised for inaccuracies and had to be corrected. He was moved to another role in the BBC.
:: Stephen Mitchell, deputy director of BBC News
A newspaper reporter before he joined the BBC, Mr Mitchell has mainly worked in radio and has been deputy director since 2008.
He oversaw the blog written by Peter Rippon which was subsequently corrected by the BBC, and resigned this morning.
:: George Entwistle, former BBC director general
Mr Entwistle joined the BBC as a trainee in 1989 after a short career in magazine journalism and went on to hold jobs including editor of Newsnight, head of current affairs and head of television.
His stint in the top job lasted 54 days and he spent virtually his entire tenure trying to deal with the fall-out from the Jimmy Savile child abuse scandal.
The final nail in his coffin was the disclosure that Newsnight wrongly implicated Lord McAlpine, a former Tory party treasurer, in a child abuse scandal in north Wales in the 1970s and 1980s.
:: Adrian Van Klaveren, former controller of BBC Radio 5 Live
A former BBC trainee, Mr Van Klaveren has now left his role at 5 Live for another position in the organisation.
He signed off on the decision to show the film which led to false allegations that former Tory party treasurer Lord McAlpine is a paedophile.
It has now been announced that he will move to a non-news role.