There are pros and cons of experience. A con is that you can't look at the business with a fresh pair of eyes and as objectively as if you were a new CEO. Fire yourself on a Friday night and come in on Monday morning as if a search firm put you there as a turn-around leader. Can you be objective and make the bold change?
It's like once you've seen Tom Hanks win the Golden Globes the Oscars you've seen his wife what kind of car he drives when you watch his movies you can't fully get really lost in them.