Would you fly a plane if you didn't know all the controls?

Would you fly a plane if you only knew half the controls?

“You are cleared for take-off.” “Just a moment. What does that button do?” Let’s be honest, you’d never attempt to fly a plane unless you were totally confident with the controls, had been properly trained and knew exactly how everything worked. But when it comes to a business taking off, that’s exactly what many owners do. They hope their business …