The BBC has ordered a shake-up of the way it is run after a review found its governing structure was "too complicated" and made it difficult to to identify who was " responsible when things go wrong".
The review, which was published today, said "unnecessary boards and committees" would be removed in a bid to increase accountability .
It said: " Below the executive board there will be a shift away from collective decision-making to a structure built around personal accountability. Large boards that previously took collective decisions will be replaced with appropriately mandated senior executives who will be empowered and required to take decisions on behalf of the whole BBC and will be held accountable for those decisions."
It said getting rid of " at least 60% of pan-BBC boards" would " speed up decision-making and ensure that all staff understand where responsibility lies".
Some meetings of the BBC Trust will be streamed live on line in a bid to increase openness and there will be "greater separation between the Trust and executive".
The Trust will also " publish the objectives and priorities that it sets for the BBC executive" and the executive will be expected to " report to the Trust more comprehensively throughout the year".
The move is in response to events including the excessive pay-offs to senior staff and the fallout from the Jimmy Savile sex abuse scandal.
BBC Trust chairman Lord Patten said: "People don't just expect the BBC to produce great programmes, they want it to be run well. While much has gone well in the past, the last 15 months have seen a number of significant failures.
"As a result Tony Hall and I have agreed some very sensible changes to how the relationship between the Trust and executive works, so we are clearer about who does what, and we are accountable and transparent. It means the BBC can get on with the job of running the BBC, and the Trust can rightly focus on holding the executive to account on behalf of licence fee payers."