This is so true. As a investor, I hear a lot of pitches where the founders say their competitive advantage is that they execute better (the flip side of believing everyone else is dumb is believing you're especially smart). Do you know who else claims they "execute better"? Everyone. That kind of attitude usually reveals that a founder doesn't have a real sense of what makes their company special and defensible, and is a bit of a yellow flag for investors -- well, at least for me.