An excellent effort, and I'll be delighted to join the pledge. I suggeest it might be improved slightly by reminding ourselves "why" we coach in the first place. It's not just about the team. It's actually about the impact that the team has on its customers and their world. Put succintly, it's about delight for customers and joy in work. In keeping with the style of the Oath, perhaps something like: "I believe in starting with why: customer delight and joyful work matter most."
