Yes, that's true to an extent. Some administrative tasks can really only be done by the attending physician. Ultimately they're the ones taking legal accountability. But other tasks can be automated or shifted to cheaper employees or not done at all. The problem is that many health system managers and administrators treat physician time as an unlimited free resource and impose all sorts of extra burdens on them. This is one of the factors driving physicians to burn out and leave the profession, further exacerbating the shortage.