Have you or someone you know successfully ran a company for 5 years on an idea that you/they simply had a blind trust on? My goal is not to insult your intellig

Have you or someone you know successfully ran a company for 5 years on an idea that you/they simply had a blind trust on? My goal is not to insult your intelligence. I merely want to point out that this is the strategy I have seen most experienced entrepreneurs around me use.