I really liked what she did in the UN
But that’s her ‘Peter Principle’ limit, I think.
She was not like that SOS from Texas and the Chief of Staff, Ex-General Something, who always looked constipated acting like he was trying to "manage" Trump.
Where Trump had good, loyal people reporting to him, excellent, successful policies were implemented. All the other department heads were trying to thwart his policies and undermine him.