The Motivation Conundrum

Look through various negotiation strategies and comment on:

What trends and themes did you see in terms of motivating forces? Did you see much similarity or diversity in sources of motivation?
How do you think leaders/managers and organizations cope with the diverse motivational needs of employees (provide examples and/or suggestions, but use research and evidence to back those up)? What, based upon what you have learned, might you try in your role to motivate your teammates/coworkers/subordinates?