I think you're looking at it from the perspective of what conclusions some business consultants would come up with if they were hired to review their operations and make suggestions in order to improve their ability to grow.
At the end of the day, the men sitting on the GB won a decades-long, rigorous competition that rewards the most loyal of company men and status quo seekers. The ability to seek out change is not in their DNA. If it were, they would have been weeded out at the CO or ambitious young Bethelite level.