Both taken from this video:
https://www.youtube.com/watch?v=lhrU9CrGqCU
"Success is not an accident. Success is actually a choice."
Related question: "Are the habits you have today on par with the dreams you have for tomorrow? Because whatever you do on a regular basis today will determine where you're going to be tomorrow."
When members of a team decide to make executing at a high level a habit, a standard they always hold themselves to, then they will achieve greater things. That mindset to strive for excellence and constantly critique themselves in that pursuit is a choice they make every day.