In business (and life) you are either growing and getting better or going in the opposite direction. Just like your muscles, your brain and natural abilities will atrophy if they don’t get exercise. You can’t stand still and expect progress. I see far too many people who “let up” at the very time they need to “push the envelope” and challenge themselves to do better. It’s also sad when a leader stays on too long and becomes more interested in ego, power and position than effectively navigating change and facilitating progress.