This is one of our favorite drills to warm up to. This may be a common drill, but we love doing for the first 15 to 20 minutes after our dynamic stretch and throwing.

Follow the Ball  
We start with a player at 1B, 2B, 3B and Catcher with a line of kids at shortstop.
We hit a ball to the shortstop who throws it to 1B.
After she throws the ball she sprints to 1B.
The girl playing first throws to the 2B covered by the second baseman, and she sprints to 2B.
The girl at 2B throws it to 3B covered by the thirdbaseman and she follows her throw, and the girl at 3B throws the ball home to the catcher.
She follows her throw to home.
The catcher catches the ball and flips to the coach and sprints to the back of the line at shortstop.

We emphasize hustle, moving to the ball and running.   It gets a lot of work done in a short period of time.

We also do the same thing with an outfield position.   The line of girls is in right field.     We hit a line drive to them and they throw it to 1B.   We do not have a 2B during this one and the SS is covering second.   The catcher sprints to the back of the line in right field.