Tim Davie says he cannot give a 'categorical assurance' that there will not be any more scandals to come out about BBC talent in the wake of recent scandals.
The director general of the BBC said he would not offer a 'running commentary' on any developing scandals within the broadcaster following scandals involving the likes of Gregg Wallace and Huw Edwards.
Mr Davie - who thundered to MPs on the Culture, Media and Sport Committee that he did not recognise the term 'talent' - said that 'we may see more things coming out' in the future.
But he suggested that the fact that figures such as Wallace were being called out was proof that there was 'positive change' happening to weed out problematic stars.
He also ducked questions at the start of the meeting on whether he would consider his position following the summer of scandals, but admitted he had been 'feeling the pressure'.
Asked if he could give a reassurance that there will not be another 'scandal of BBC talent abusing their position', he said: 'Can I give a categorical assurance that I'm never going to have someone abusing their power at the BBC?
'No. Because culture (change) is an ongoing work.
'I think things have changed since we last talked to the committee, we are seeing people call it out, and that is a positive change, but it's ongoing work.
'I don't think you can change culture in six months and suddenly say nothing's going to occur.
'We may see more things coming out, because in some ways I'm asking for it, and being utterly transparent and running towards the problem, that's what we need to do.'
BBC director general Tim Davie says he cannot give a 'categorical assurance' that there will not be any further scandals involving top stars after the Gregg Wallace and Huw Edwards controversies (pictured at committee today)
He added that the BBC 'has dismissed people that are not living our values', adding: 'That is non-negotiable'.
However, he declined to provide further details on whether there are any scandals brewing, adding that he would not provide a 'running commentary'.
'We're not mucking about now,' he continued - prompting committee chair Dame Caroline Dinenage MP to ask if that 'begs the question whether you were mucking about before'.
Mr Davie, alongside BBC chair Dr Samir Shah, is also being grilled by MPs on controversial documentary Gaza: How To Survive a Warzone, which it later emerged was narrated by the son of a high-ranking Hamas official.
Committee chair Dame Caroline Dinenage MP, has previously labelled the debacle a 'hugely damaging episode' for the BBC's reputation for impartiality.
The pair are also being quizzed in detail on how the corporation responded to complaints about the behaviour of MasterChef star Gregg Wallace and its coverage of Glastonbury, which saw rap group Bob Vylan chant 'death to the IDF' live on air.
Mr Davie said that scenes of Bob Vylan at the festival were an 'antisemitic broadcast' and the 'consequences' for those involved in the live broadcast were being assessed - but declined to go into further details.
'It is not appropriate if someone is going through that kind of action to provide a running commentary on that. There are people facing consequences. They are well intentioned people who made a mistake,' he added.
Mr Davie opened the meeting by saying he would be 'inhuman' if he did not admit he had felt the pressure.
Mr Davie said: 'This is not a job for the faint-hearted. What has been on my mind is dealing with the issues.'
He acknowledged the issues the BBC faces are 'serious' and said he is 'ensuring the BBC is taking the right actions, I've been totally focused on that'.
He added: 'If I said I wasn't feeling the pressure I would be inhuman.'
This is a developing story.