The difference in management and results has been amazing. Bezos set up a traditionally-managed launch company and threw billions at it for twenty years hoping it would produce, and they haven't even made it to orbit. They can't even produce the engines so Vulcan Centaur can make it to orbit.

Musk set up a more startup-like company using agile development methods, and they were running America's workhorse rocket within fifteen years (when they surpassed Atlas V).