We develop our attitudes and over time we form habits, of which we usually have little awareness. Not all our habits are helpful and some can be destructive or goal defeating. But, since our attitudes are learned, they can be unlearned.
"A bad attitude is like a flat tyre, you can’t go anywhere until you change it."

If your staff aren't happy, it could be because of your managers. Employee satisfaction is driven by factors largely controlled by managers, including recognition, opportunities to learn, fair treatment and effective feedback. Giving feedback is an important, but sometimes overlooked, part of a manager's role.
We've all heard the story. Your boss comes back from a training workshop all fired up with new ideas and promises about the future. But a few weeks later and nothing's changed. The best way to ensure long-term behavioural change is with followup coaching.