To work on communication between players on fly balls and infield pop-ups
A few baseballs
Have two coaches run this drill. One coach will be on the third base side and the other will be on the first base side. Have players in all positions. Outfielders shouldn't be as deep as normal.
Coaches will alternate throwing shallow fly balls to the outfield and then to the infield on their side of the field. Fielders will communicate (see outfield communication) using appropriate calls and make the catch.