Saying "I don't know" may instill confidence

I got this as some email feedback on one of my VPs.
But I was especially impressed with the VP  In response to at least two of my questions, the VP paused then admitted he either didn't really have an answer or that he hadn't thought about the issue simply because the company wasn't to the point of having to address the subject yet.  So rather than try to BS me with words, or telling me what he thinks I want to hear, he essentially shrugged and admitted to not having an answer.  In an industry like software development that's rife with alpha males, especially in leadership roles, VPs honesty and relaxed nature were refreshing - traits no doubt also recognized by customers, co-workers, investors, etc.
Nice job!