Don't be afraid of differences. Or, even better: make use of those differences. What makes the real difference is how you deal with difference.
In every organisation it's important how people work together to reach a goal and the interaction of personalities as they do this. What can one person do for another, how do they influence each other and what is the resulting effect on everyone's contribution?
Cooperation entails enthusiasm, inspiration and energy, but also clashes, conflicts and 'allergies'. Elements that can make cooperation excel or make it fall apart.