The TED talk “How Great Leaders Inspire Action” is a classic but I came across it quite recently.
You could substitute leaders with organizations or companies. The end result is the same. When there is a clear defined WHY, it’s easier to persuade people on your HOW and WHAT. This applies to defining, building and selling your product through hiring members for your team. If you can’t clearly define WHY, then HOW and WHAT does not really matter. It will never be as convincing.