She worked really hard on a proposal about how they would go about selling the Falcon rocket to potential customers. Elon took one look and said "That's great. I don't want you to write reports and proposals, I want you to do it.".
My god, I would give anything for a boss like that.
The book is titled Liftoff. It's the best SpaceX book there is and is very accurate involving many interviews with early employees. Musk is in the book but he's not featured majorly. It's mostly about all the employees who worked on the early rockets.
You probably wouldn't. A boss that won't give explicit approval for aspects of a project is going to throw you under the bus at the first opportunity. They're not going to take any responsibility if you miss a target. They will however take all the credit for your success.