Money may be a great motivating factor. But research says and experience confirms that it is not the only one. In fact, after a point in time, it ceases to be the sole motivator for many people.
How do you then keep them motivated? You may have done everything in your ability to make them feel at home. But if they do not feel a sense of belonging, it would be very difficult to keep them motivated. The following are a few things you could try: