One coach stands 20' from home plate down the 1st base line another coach stands 20' down the 3rd base line. Each coach will need a catcher. Split the team up with half of the players at the SS position and half at the 2B position. The coach standing down the 1st base line hits ground balls to the players at SS. The coach along the 3rd base line hits to the players at 2B. Balls are fielded and thrown back to the catcher assisting the coach that hit ball. After a few times through the line, have the players switch position. You can also have each player run to the back of the other line after fielding each ball.
Players love this drill. Place 5 players in a circle. Have one of the players throw to a player across the circle, but not next to the starting player. Now, the player receiving the initial throw throws the ball to the player across the circle, but not the player that just threw and not a player next to the current player. Continue on in this manner for a while. When the players are proficient, a second ball can be added.
This is a good warm up drill. Have all players at shortstop. Two coaches should be near the mound facing the players. There should be a coach at first base. Each player should have a ball. One at a time, the players will throw the ball to one of the coaches near the mound while the other coach rolls a ground ball to the player. The player should charge the ball and make the play to first. After throwing to first, the player continues to jog towards the first baseman who will roll a ground ball to the oncoming player. The player will field the ball and throw to first. The first baseman will throw the ball back to the player who takes the ball and goes to the end of the line. This drill should be done rapidly so the players do not have to wait long between turns.
One and Cover
This is a somewhat more advanced drill. Place players in infield positions including catcher. Hit a ground ball to one of the infielders and have the fielder make the throw to first. The player that fielded the ground ball should then cover his/her base and the catcher will make a throw to that base as if a runner is stealing. Outfielders should be backing up each throw.
You can mix it up a bit by having the shortstop take throws at third base after balls hit to the third baseman or have the second baseman cover second after balls hit to short, etc.
You can also have the infielders throw around the horn to end each sequence.
One Knee Throwing
Have two players 20' apart with each player kneeling on the knee corresponding to his or her throwing arm. Playing catch in this position will help to develop a throwing, rather than a pushing, motion. The distance between the players will increase as the players become stronger. This is a great drill for younger players.
Place three players in a line with the players spaced approximately 30' apart (closer for younger players). The player at one end of the line throws to the player in the middle. That player catches the ball and throws onto the next player using the motion that an infielder would use when taking a throw from the outfield and relaying the throw to home plate (arms raised to give the thrower a target, catch the ball on the glove side, turn and throw as quickly as possible). The player on the end should apply a tag when receiving the throw. Reverse the order. Have the players rotate after every few times down the line. You can have more than three players in the line, just have all the players in the middle act as relayers.
Should I Stay or Should I Go?
Have all the players line up at home plate. With a coach by the players to start them off and a first base coach. As the players run to first, the first base coach will tell the player to 'beat it out', 'go 2' or 'make the turn' along with an appropriate visual signal (pointing to the bag, windmilling the arms, etc). If the player is told to 'beat it out' he or she should run through the base as if beating out a ground ball. If the player is told to 'go 2' he or she should make a proper turn and head to second base, sliding into the base if appropriate. If the player is told to 'make the turn' he or she should round the base and take 10 strides toward second base while facing the field. The first base coach can then tell the player to 'get back' to the base or 'go' to second.
Side to Side
Set up 2 markers (cones, mitt, etc) about 10' apart on the infield dirt. Position a player between the markers. The player does not need a mitt. A coach will roll a ball to one side of the marked area. The player will slide step in that direction and bat the ball back to the coach with his or her hands. The coach will then roll a ball towards the other end of the marked area. The player slides to that side and bats the ball back to the coach. Repeat. The coach should have several balls in case one or more does not get batted back. The number of repetitions and the distance between the markers will depend upon the skill level of the players.