On the blog that Peter Rippon wrote that turned out to be inaccurate, the report says its preparation was chaotic, that there were significant failings in the managerial oversight and "when clear leadership was required, it was not provided."
There is more criticism of George Entwistle who took a long time to take control of the issues. Stephen Mitchell signed off the blog.
And Helen Boaden texted Mr Rippon at the time saying "Excellent blog. You are a terrific writer x'.
The report is also critical of the failure to go to the police with the evidence Newsnight got.
When I doorstepped Mr Entwistle and Lord Patten, both insisted the BBC had gone straight to the police.
Pollard says he believes information should have been provided to the police.
The decision to drop the BBC Newsnight investigation into the Jimmy Savile sexual abuse claim was "flawed", according to a review.
A damning report into the BBC's Jimmy Savile investigation has revealed George Entwistle was previously warned about his "darker side".