Corey, you asked, "Why did they not do the greens expansion prior to the open? It would seem that would be a low cost improvement relative to all the other work."
It might seem so, but it would have required rebuilding every single green, and the USGA's generosity in paying for things really did have reasonable bounds. As it was, the rebuilding of tees and every bunker except the carry on #7, and the new green on 18 exceeded the initial projections.
It was discussed but would have proven too costly.
Jim, you wrote and asked, "I'll be real interested to see how the pro's, the people on this forum, and everyday golfers who play the Black like the changes... Is the course working with any architects to expand the greens? Does BPB have to close the greens, while they are working on them?"
Some changes are dramatic. For example #14. Though most think that it the changes are brand new, other than the front left tongue, the new putting surfaces on the back and back right behind the bunker are actually mostly recovered areas. They had just been missing for so long that no one today would recognize them as anything other than an addition.
On other holes, for example #11, unless you are looking for them you probably will only notice it if you play the hole before and after it was done to see the changes. This hole has been expanded a bit higher to the back and may even go a little further and farther left and right on the back edges.
Then there will be holes such as #7 where the change will look dramatic if it is done. The green needs expanding to the tops of the back moundings and to the left and right sides along these same mound crests. The undulations here would be starkly dramatic in scope and look.
Although conversation's about this subject has been held with all involved from architect to USGA, the work is all being done in-house under Craig Currier's watchful eye. He has gotten a great deal of praise but most don't appreciate how talented a young man he is. He also has a great respect for the history of the game and his course.