Duke's greens and bunkers were completely redone by Rees in 1993. They're not RTJ greens.
Not only this, but Duke was a VERY early adopter of Champion Bermuda, and they did not recontour the greens at all. Arguably, it might have been better if they had on at least some of the greens, which were bent grass at the time both of the Joneses worked on them. #4, the first par 3, is a good example; if the greens are fast and the pin is on the front right, the hole borders on unplayable for many.
I live in Durham, and played Duke many times before and after Rees Jones worked on it, and before and after they regrassed the greens. The Rees "redo", IMO, is one of the best I've ever seen. But the Bermuda greens just aren't much fun; you just have to putt very, very defensively. I only play there three or four times a year, and that's plenty for me.
I will say this, though. Duke is a great example of the tension faced by a university course. Should the course be for the entire university community, or should it provide a great test for the golf teams? Those are VERY different goals, and it is a very difficult line to walk.