Several of them shrugged when asked this question. To them, working together seems to come naturally. I guess we're just compatible people. We do value relationships over some other things, perhaps. That doesn't mean they don't have differences of opinion.
Communication is a key ingredient.
When I go to bed at night I want to know that my family, customer and employee relationships are good. I want to be able to go to a family reunion 10 years from now and not have things standing in the way of good relationships.