These are excellent points and can be summarized into: Why are you here and how did you get here? Where are you going? How do you plan to get there? - With that in mind, of all of the points they make, the most important one IMO is point #4.<p>Point #4 is so important, and I feel like a lot of people lose because of this one. Sometimes you'll say something in the "how do you plan to get there part", and then you'll really want to delve down into why, this smart cool thing you've figured out. You don't need to. If they ask why, tell them, if they don't, just tell the story. If they ask why, <i>do not</i> get into crazy detail or operations stuff, partly because you're probably wrong, partly because to some degree you'll be held to it, partly because there is a high chance you'll introduce confusion/disagreement. I cannot say this enough, do whatever you can to stay out of the weeds, if you're pushed, tell them you'll email them later with the details, make a note, email them later with the details.