A consultant is an expert in his or her field and thus as the writer stated qualified to assess what medical care is needed and how to carry it out.
That said, it makes little sense for a fully qualified doctor or nurse to spend time dealing with administrative matters that call for a completely different set of skills and training, so employing secretaries to write letters and records, book-keepers to deal with finance, and an admiminstrator to oversee them and manage the day to day running of a hospital makes sense.
What does not make sense is an administrator trying to decide anything one needs a medical training to assess.
If this is happening, or if so many people are being employed on the managerial staff that there is not sufficient funding for medical and nursing staff, obviously the matter needs to be addressed.
As far as I can see, everyone from politicians to the general public have ideas about what is wrong with the NHS, but until the people who work in the NHS are asked for their opinion of what is wrong and how to fix it, there is little hope of improvement.
This is the real problem: politicians and perhaps civil servants believing they know how to fix the NHS, elementary or secondary schooling, transport or anything else, but neither having worked in these sectors, nor willingly really listened to those who do, few, if any, of their improvements will make things better.