exactly Mick. If Djokovic finds himself in an exo or something with a Ryan O'Neal calibre palyer (2.0 level), he's going to crank it way down and play soft charity tennis in order to help the sap on the other side of the net to get to play some. And if the sap gets a little uppity and tries to hit winners you just run em down and send em back to put him in his place.
"He looked like he was trying to imitate Sampras when I first played him." Agassi in Facing Federer