Champions are essentialists! They know what they need to do and then they set out to do what is necessary, no more, no less. No doubt there are a thousand thing that they could do, but they chose a laser focus on the need to do things that will advance them toward their goal. They also realize that that there are always tradeoffs, in many cases this means you can?t do that. Less is more, because with less there is focus.
For more in-depth information on this important quality read: Essentialism ? The Disciplined Pursuit of Less by Greg McKeon