If you think the task is impossible - how will your team think about it?
If you behave like the project is impossible - how will your team behave?
If your word choices reflect your mindset, how will your team sound?
Your mindset matters
I have seen this play out time after time, and a good coach surfaces that lack of belief and helps reframe those thoughts to get the leaders to think different, better, more positively - and develop a meaningful plan to implement that new perspective.
As Henry Ford said, "Whether you think you can, or think you can't, you're right