Strategy is how to win the war (match), whereas tactics are how to win each battle (points). Strategic decisions take into account your opponent, and all match conditions in order to win however you can.
Your understanding of match strategy becomes increasingly important as your technique becomes closer and closer to perfect. At a certain level of play, each player will have comparable technique, but it is the relative understanding of matchplay strategy and tactics that will more often determine who wins.
Nice! LEVEL UPPPPPPPP! Go back through each section and practice until you’re a perfect tennis machine. Check out my Pro Video Library for slow mo videos of the pros. Try to pick apart their technique and decide what you like and don’t like.