Proper planning prevents poor performance
There are several noteworthy aspects to this aphorism. Firstly, I initially came across this in a class on paving, run at my local TAFE. So the point is equally practical and applicable wherever you go.
Secondly, it’s one of those ‘double-negative’ statements. As such, it doesn’t really guarantee a positive outcome. It does, however, give you wide freedom in how you go about the task.
Finally, it kind of acknowledges that performance has its own way of working along. That is, as a facilitator, the planning gets you to the point of standing up and saying “G’day, the reason we are here is to…”