In the USGA model, thick rough has always seems to be the companion of the narrowed fairways.
Is there place in this discussion the "French Lick-Dye" model of wide corridors, VERY narrow fairways, expansive mild rough, and difficult-to-hold greens?
I haven't seen enough to be convinced of the concept, but I did see it in action on the course at the Big 10 Championship. The players had a very tough time holding long approach shots from the rough. Short irons, not so much.
I'm not advocating it; I haven't played high-level golf and my understanding of architecture is still wafer-thin. I do know that it would "look" funny to impose such conditions on Olympic and elsewhere. And, frankly, I'm not sure that Dye even intends for the rough to stay short for high-level events.
But I am curious to hear thoughts...