As much I'd love to read it myself, it's a tl;dr at 25,000+ words. Can anyone summarize?
I saw sales people as clueless and useless until I joined my first startup, whereupon we /needed/ them. Our CEO hired a sales guy, all smarmy and slimy, and that head sales guy hired a team (mostly old buddies he knew), and I saw a real sales force in action. I swear they could have sold enterprise licenses to a 'Notepad' clone, it was amazing. It didn't matter to them /what/ they sold, they just sold.