I think whenever you come in, whenever you try to evolve a company, people will get nervous. But, if you articulate a clear vision, a clear mission to help them understand their roles in it and ask them to buy into the system, everyone will band together to make it happen.
I like being surrounded by people who have very little fear and very little respect for the past - not in a negative way, but in a positive way. They appreciate everything that's been done, but they constantly look for how to do it better.
The good parts about being a public company are increased discipline, increased execution and increased transparency to make sure that you are really building a company for a hundred years.