I find Emma to be somewhat 'away with the fairies' and not really 'with it'. I felt the same when she was on Sky News working various hours, so it can't just be the early starts.
A regular phrase she uses comes readily to mind; she usually says '... I should say' after correcting a spoken mistake.
She presumably isn't gormless though, having been a business presenter on CNBC then Sky, which I imagine is a territory where you have to know your stuff, so maybe she just isn't a great presenter and should be a reporter or correspondent.