Are you saying that we should wait to see if we have a vaccine/one that is effective enough and only then if it does not go to plan start planning for the alter

Are you saying that we should wait to see if we have a vaccine/one that is effective enough and only then if it does not go to plan start planning for the alternative case? I'm not sure I have it right. If that's the case, I couldn't disagree more from a disaster/public health/societal planning perspective. If we do that, we'll always be behind.