Empower your staff to Make Decisions, and don't second-guess them.
If you've done a good job of training your people to be your proxies, then you must believe they are doing their best to act in your (and your company's) best interest. Even if they make a wrong decision, or handle a situation in a way you would not have, don't second guess or berate them. Instead, use it as yet another training opportunity. Hear out their reasons for their action - most of the time, when taken in context, there was a logical basis for what they decided to do.