Hit the nail in the head. A growing company has plenty of opportunity for learning, promotion, making new things, and retooling old ones to match the growth of business. This means there are very few zero sum games, either at the IC or management level. When growth stops, there's little chances to gain status by solving problems: Someone already has status, and really doesn't want to lose it. Those frustrated with th…
..or they are simply more enjoying life by maintaining a better life-work balance.