Not a fan of large scale reorganisations in general. It seems that they are highly prized in the public sector though. My wife, who works in Local Government, is going through her fourth in the last 8 years. This includes a new pay scale, which presumably will save money throughout the organisation, but in her department it would increase wages, so allegedly they can't afford to pay it, and staff will be put on a lower grade than they should be. I told her to ask whether management are also "taking one for the team".
Private companies are less keen on such things, and they only seem to happen when there has been a significant change, such as a takeover or merger.
Perhaps I'm an old cynic, but I tend to think they are popular in public companies because they give the illusion that something is being done. My view is that the problems with NR are not so much organisational as attitudinal; there tends to be a silo mentality, where information isn't shared and one group can be acting directly against the interests of another. I can't see that the new structure addresses that issue.