TE -
You're right, and Tom Doak is right. And I think that in different ways you're both trying to correct general misconceptions, which is important. But a general misconception doesn't preclude that possibility that any one person might bring more to the table than that.
Speaking just from my experience with television writing, I'd say that I saw my craft as being both about the words AND the medium. That is, I didn't approach my work and the subject at hand in the same way I would have if I was writing an essay or a novel or a play; I approached it knowing that I was writing for television and for a specific television programme that, for example, had commercial breaks at the 4, 14, 26, 37, and 47, and 56 minute marks; knowing that no individual segment of voice over would be more than about 10 seconds long; and knowing that any great clip from a 'talking head' would wipe out any bit of writing I'd done, and that I'd have to re-write it in order to support this clip etc. In short, I knew at least a little about the 'production' side, and the medium.
My concern then was that I wasn't so sure that the knowledge about the medium made the actual writing, the IDEAS, any better; I think it limited them. And I think when a writer limits his ideas, he lets everyone else 'off the hook' as it were, i.e. directors, editors, producers know exactly what's being asked of them because it fits right into the comfortable and established norm. That's fine - good work gets produced that way.
But maybe if the writer knew less about the medium and just wrote the very best ideas he could, the other production people would be forced to find new and imaginative ways of making that writing work for the medium; they'd be asked to come up with more than ever before, and the envelope of what would for ever more be thought of as possible and ideal would thus be expanded.
Of course, they'd only feel 'forced' to find new ways of doing things if the writer was a very important person/writer, or if they otherwise felt they needed to keep him very happy.
Is any architect in that position?
Peter