When you are dealing with professionals, it usually pays to let them do their job without interference and certainly without ‘suggestions’ such as “shouldn’t you do it this way?”.
This applies to your dealings with professionals from all walks of life – tradies, financial services practitioners, doctors, media specialists, business advisors .. and so on.
If you want the best advice and application for the task at hand, please recognise that they are the experts. Recognise their skills and learning and be appreciative of same. People don’t become experts overnight. That comes from hard work, many years of relevant experience. THAT’S what you are paying them for!