Pros
They let people pursue their outside passions. Individuals can participate in professional organizations if they choose, However, this is not necessary and more often tahn not managament simply pays no attention to those employees that have managed to find their way into relationships that can be influential in state and federal government. There are a number of very competent personnel as individual contributors. These professionals are very willing to share their knowledge and provide mentoring. Mostly though, these folks do their job and go home never pausing to look back as they await a buy-out package or retirement.
Cons
One must stay inside the context of one's job, follow orders and let the Brit's run the outfit. You'll survive and collect a paycheck. Upward feedback is an exercise as the overall culture and morale never seems to change much from year to year. Creativity is not necessary; it is expected that one will stick to their knitting and get their work done.