Everyone will have, at some point, had the pleasure of working for a bad employer or manager. How can we learn from their mistakes?

Everyone will have, at some point, had the pleasure of working for a bad employer or manager. How can we learn from their mistakes?
We’ve all seen in practice good and bad leaders. Needless to say there are a few myths out there about what makes a good leader so here are just 2 of them busted!
It’s time we agree that the carrot and stick motivation approach no longer works and only creates an unhealthy workplace where creativity is stifled. So what is the key to inspire and engage your people?