Also see the above fault pertaining to glove technique. It is common for players to trap the ball on backhand plays. By moving toward the ball a player can choose the hop that he wants. Backing up takes away that choice. There is a fear factor here.
Players have to overcome that.
Poor fielding technique of a slow roller- look for the infielder fielding the ball in front of his left foot. It is common to field the ball incorrectly on the side of the foot. Also look to see that the infielder keeps his feet moving. Many young players will stop and then throw the ball. The correct technique is field the ball as the left foot lands, transfer the ball to the right hand, throw the ball as the right foot lands.