Each infielders will get 5 grounders to play at their specific position, field a bunt or slap, field a grounder and turn two, field 3 grounders hit to inside and outside their position, (watch their feet, do they shuffle or cross over) make the throws to 1st base.
Now here is the kicker, if they drop or juggle the ball they start over, if its a bad throw, they start over. If the ball is throw wild, start over.
They soon find out what is expected of them.
Outfielders will get fly balls on the run from left field running to center field to right field, with a proper throw to 3rd, 2nd and 1st (watch how they set their feet).
Catchers in full gear in their ready position, balls are rolled from behind make plays at 1st, 2nd, 3rd. We have the pitchers field bunts, turn and pivot to make plays at 1st, 2nd, 3rd.