No, I do not let my observations drive who I listen to. That is poor logic (not only with medical issues but with life in general).
Our observations may, however, discredit some we hear.
I do not know how credible Faucci has been. I just have not kept track. I know he has made conclusions that changed with known data, but I do not know that he acted wrongly. I believe the problem with Faucci was the government listening to medical data in a vacuum (e.g., the fact we could prevent automobile accidents if we did not drive cars foes not justify banning automobiles).
I m not sure why you think Faucci is the "expert of experts". Last I heard he made conclusions off the expertise of others.
I have provided some of those I belueve an expert.
Who are the experts you resource?