Paul,
I read your post with extreme interest and the first thing I thought of was Max Behr, and then running further down, that TE Paul had beat me to it!
Recently I played a course where there was little definition of fairway--only nearby tree lines and the placement of hazards had little to do with any semblence of stategies. I thought for a moment of Oakmont and it's penal nature, and being that I've never had the opportunity of seeing it in person, if this was a sort of a convoluted, confusing way of designing golf holes. Not that Oakmont is confusing or convoluted. Given that many modern architects would claim that if they ever design something so brazen, bold and quirky, they would be lynched by an angry town mob.
I'm sure Oakmont has no problem working--strategy wise--and I'm sure it was just this architects way of taking a nothing site and trying to give it some interest. It certainly is a popular place, but the placement of bunkers, their shapes; screwy trees; and these strange mounds blocking the entrance as well as visibility to every green left me feeling, less then enthused.
Trying to stick to your point, and Tom Paul's and Bob's ideas, I'm very familiar with a school of thinking that allows one to discern features and that don't neccessarily need a fairway cut or line to do it.
A dog leg doesn't neccessarily have to be a dog leg, but it can play like one-thus opening up that line of charm--that discernable feature(s) that dictates the line(s) of play and, hurrumph, hurrumph....strategies to get the ball to the green and into the hole. It doesn't have to be a bunker everytime either.
I think of Rustic Canyon #12, Riviera #10, Pacific Dunes #3 as very good examples. A lot of great MacKenzie courses have lost this because of the addition of a rough grass and the elimination of shared fairways. I also think this is--for the most part--and I'm sure to get Tom Doak in upheavel over this--the California School of thinking, or at least where it further evolved from inspirations such as the Old Course at St. Andrews.