MC,
One of the typical ones in this, and any cost cutting era, is to minimize the size of the high maintenance areas. I used to use 80-100K sf of bunkers and now a typical bunker budget is 45-50K. Every sf of bunker costs about $5 a foot to build and consumes a lot of maintenance time. (On a recent high end outing, I saw a crew of 7 guys working on one bunker)
Tees are getting downsized - I am working with a super now who says his 7250 Yard tee set has seen but 50 players in the last five years. So, why not cut that down to about 15 x 15 to save construction and mowing?
Greens tend to get "standardized" to about 6500 sf - the accountant asks why build 9000 sf when only 5000 sf is pinnable anyway and the rest is wild contours that will probably only scalp, dry out, or otherwise be sort of a pain in the ass for the super? And, not too many golfers seem to like really wild contours anyway.
Taking out those blasted (Jones, Brauer, insert your gca here) mounds is getting to be a popular option! Those who do time and motion studies will tell you that mowing flatter areas is quicker than mowing mounds and steep slopes. Irrigation is easier, too.
Then there are both fw and rough. As above, 40 acres of fw (some guys are used to mowing only 25 acres and think thats a lot) is obviously a lot more cost effective than 80 acres, all to create some strategy that 99% of golfers won't appreciate anyway.
As to rough vs native, there is a real tradeoff, which can be estimated only, on having play areas vs native. Yes, you save about $6000 per acre annually by putting that acre in native, but its harder to figure slow play and lost revenue accurately. I was joking yesterday that I continually underestimate areas that are "in play" and overestimate the ability of any area on the course to be "out of play."
On a specific basis, those kind of decisions usually get affected by sprinkler pattern. If you get the sprinklers laid out and the area you have brushed out for fw is between them, do you bring the turf area in, or take it out and add a sprinkler?
Reasonably minimize area, simplify shapes to equipment, soften slopes. Those are the biggest keys to reducing maintenance. Reduce shade and increase air movement are big helpers too.
I don't know if that answers your questions, but at least, I tried......