Doubt, while annoying and irritating, can be a leader’s best friend.
When a leader hesitates, pausing to consider the assumptions as well as the options, she is doing what the organization needs.
How a leader responds to the second-guessing is a measure of his ability to withstand pressure. Knowing in your heart that you made the best call you could make at the time forms a foundation for going forward.
The leader has only her gut to trust. And when she can look into the mirror and say she made the best decision possible at the time then that is all you can ask.