Do these people not have others advising them who are clued up in a particular field? I don't think even the best Prime Ministers were experts on everything, hence the need for a support team so even if Truss doesn't have much of a clue about the possible implications of what she's proposing I'd have thought there would be someone in the background who does and who can advise her accordingly so when the challenging questions come up she's at least in some sort of position to try and answer them. Or is she just winging it?