Masters always appear to be in the perfect place. They always appear to be doing perfect moves every time. But in truth, there is no perfection going on. Just change. There is no plan to set up your training partner. Just change. In a very real sense, the training partner is creating the circumstance and the master is changing with him over and over. In Systema and Life the person who is no longer can change is the one in trouble.
"You must be able to play, to change constantly"