Many tennis players take lessons and learn good technique and the fundamentals. However, when they get in a "real world situation" they are not sure where to go after they or their partner hit the ball.
 
Here are a few examples while playing doubles:

1. You are on the baseline and accidentally hit a very weak shot - what to do? Stay back and defend the next shot.


2. You are on the baseline and hit a very strong cross-court shot - what to do? Move in a little looking for a weak return or move to the service line and play in an offensive position.


3. You are on the baseline and you or your partner hit a nice deep lob over the opposing net player - what to do? Move forward to the service line looking to take the offense. If they hit your shot back with a lob, take it as an offensive smash.


4. You are on the baseline and you hit a weak lob too short - what to do? Stay back, tell your partner "Short" so they can move back and then defend the overhead smash and not get "killed" by it.


5. You are on the baseline and you hit the ball "under" the advancing opponent (more at their feet) - what to do? Move in looking for a weaker or shorter return.


6. You are failing to keep the serve return away from the opposing net player - what to do? Ask your partner to move back to the baseline with your until you get the point started.


7. You are on the baseline and your partner, at the net, moves across the center line to "poach" the ball - what to do? Immediately move to the opposite side of your court and protect the open court left open by your partner poaching.