Others have put this differently. But my experience working at a startup before and watching both the founder and marketing manager tells me there's a difference in startups. Atleast the one i was at. The founder had a vision that was pretty impossible to transfer to someone with all the nuances and subtle differences. And when someone(experienced too) else was marketing, he missed out/dropped out all those subtle differences, and was just practicing his Always Be closing principle. Maybe all startups don't have the same quality/problem. Maybe some startups are very fine calculated risks, that can and do manage to transfer/communicate their vision easily.