Pros
market segment leader, annual earnings steady and growing, large enough to get lost in, has a large geographical foot print if relocation is desired; corporate is isolated from the operating companies,; hterefore it does not have to exert any effort to maintain (or rather - justify) its existense - so long as all the corporate drones have to do is re-publish the work performed by the operating companies, then life is wonderful.
Cons
senior management does not support "change" and will move mountains to assure the status quo. executive level is disconnected from daily management; conserverative approach to daily business is tempered with a firm belief that those at the top are alwasy right and that any new ideas must come from outside the organization before they could possibly be viable