Being able to read a ball screen and make the right move out of it can add a lot of value to your game. However that is just the first part. Once you read the defense, you must be able to execute the right move to make them pay. If you are not able to do this than the ball screen will be useless. These different moves are the basketball fundamentals of using a ball screen, and it is important that you know all of the different reads and what moves to use.
In this ball screen switch situation you are going to practice coming off the ball screen and having an imaginary big man defender switch onto you. The shot clock or game clock is low, so you need to go one on one and take advantage of the mismatch. Ball screen switches happen a lot at the end of a clock situation, because the defense figures that a big man can guard a wing player for a short period of time. It is important that you make them pay for switching, and this drill will help you work on that.