Focus on processes, not outcomes
You CAN’T control results and thus they are a poor measure of performance (you can perform poorly and win). The goal is to BECOME better, develop each person and the team by focussing on what you CAN control: PROCESS (focus, intensity, execution).
The past is gone and the future is not defined. Looking forward or back disperses your energy causing you to lose power and execution quality declines. Think physics: a given force, applied on a smaller surface creates more pressure (eg a woman’s high-heeled shoe vs a barefoot).