Spot on Jeff!
This is how it should work, but they are an elusive breed. Invariably the SM is a complete after thought, in much the same fashion as that of sets, lighting & the general Mise en scene.
Besides the initial choice of the show & some one to Direct it, the SM should be an integral part of all productions teams. In fact they should head up the logistics and operation of it, to the satisfaction of the director. [in most comeatre productions]
When ever you come across one, hang on to them, they are one of the best reusable production resource, along with techies.