I haven't seen enough of Tom's work to know what looks like what. From pictures, I suspect his courses are starting to look more "finished" just like Pete Dye's started to look that way. Not meant to be an insult to either, but both (I think) are getting a bit more expansive in scale, and more refined, which really isn't unusual for a gca progressing through his career.
It also wouldn't be too unexpected if even someone as passionate as Tom and his crew started getting into at least a few patterns as they take on more work. As Tom noted in another thread, sometimes you try an idea, but aren't 100% happy with it. The next time the op presents itself, you take a mulligan to perfect it. In writing, its a first draft - in architecture you got to keep that draft around.
If I noticed anything (again from pictures, so this may just be the holes the photographer chooses to show) its that "cluster bunkers" are getting to be slightly favored idea with Tom.
I once had an associate design a green with a kangaroo pouch bunker (like Muirfield Village 10) for a different look. By the next day, he liked it so well, he had another 5 greens with similar bunker complexes! So, it happens. We latch on to what we like.
The oddity is that sometimes we become repetitive while trying to be different! Is C and C getting repetitive in doing a lot of the "random bunkering" that they started to get away from the mentality and repetition of bunkers only at a certain distance from the tee? They have few holes with say, four dozen pot bunkers, or a single ultra big bunker, which would break their courses bunkering template, to use John K's words. Why?
Tom could probably answer better, but I'll bet they think they don't fit in the natural landscape, but dominate it, so they sort of wipe it off their slate of "tricks" being the minimalists that they are.
JN on the other hand, not so much of a minimalist, had no qualms about inserting a huge waste bunker at Dismal River. He has done them before, but it should work best of all in the Sand Hills, no? Even if JN didn't go see SH, I bet his associates did, and noticed that big fw bunkers weren't part of the C and C thinking, and probably consciously inserted it JUST to make the course different. I think it works.
Only examples of the fact that anyone who develops any strong belief about gca, whether minimalism, easy maintenance, creating certain shot values, or whatever, tends to box themselves in to less variety over time! Attaining true variety means consiously going against your personal grain sometimes. But then, the debate is, do I use an architectural feature I don't like, just to make it different from my previous course?
Its a great topic to discuss, with no disrespect intended for Tom or anyone else as to why things get more alike over time, and not more different. Most GCA's wish they had the big name architect problem of doing so many highly scrutinized courses that people start to look for flaws, repetitiveness, etc.