Perfection is the enemy of the good when it comes to emergency management. Mike Ryan WHO.

Michael Ryan (WHO Health Emergencies Programme) at daily press briefing on COVID 19 March 13th 2020

“Perfection is the enemy of the good when it comes to emergency management. Speed trumps perfection … The greatest error is not to move. The greatest error is to be paralyzed by the fear of failure. If you need to be right before you move, you will never win.”