So, it appears they are cutting sod in about 24 inch squares. Then, if the contours from where the sod is cut, to be stacked on the side for replacement after the contour has been changed; doesn't that leave several odd areas where 'fitter' pieces need to cover new exposed spaces between the areas from where the original contoured sod was taken up, and the new dimensions created and old sod replaced? Do they use the sod taken from the top of where a new bunker is being cut, and that sod becomes waste from that space and used in fitter required areas?
Years ago there was an article in Golf Course Management Magazine detailing the work of the grounds crew and the cultural practices on TOC. It spoke of differences in the working environment in areas of both the working conditions and cultural practices between US workplace expectations and methods. The workers and superintendent of TOC with regardis to the difference in the expectations of the average work week hours of US supers and the TOC superintendent and assistants was one of more respect for length of work day which I think might be a reflection on the more European views on that matter. But, the cultural practices of topdressing and aeration, and IPM, etc, were also quite different. I remember the article pointing to the source of topdressing sand as local beach sand, and also more simplified mechanical practices.
What I don't remember from that article was the issue of turf re-seeding when or if needed, sod nursery practices and maintaining the turf sward as the natural evolved stand of cultivars.
If these newly resodded and open areas need re-seeding or over-slit seeding, what seed do they use? Do they use cores to provide sprigging on a turf nursery in order to maintain the evolved characteristic of the local blend of cultivars and that is what they use exclusively for restored area replacement?