This brings together the calmness of the stride, the quickness of the pivot, and the hand action to contact. Players that are pulling off the ball and cutting off their swing should take soft toss with the toss coming from behind them to the outside part of the plate. This will make the hitter stay with the ball longer and have the proper finish to the swing. The key to knowing you have taken a good swing and have finished properly is to maintain good balance after the swing. After each swing, check to make sure your feet haven't moved and that you are not struggling to stay upright.
Quality is of utmost importance.
Taking bad swings in hitting drills will create consistently bad swings in competition. When a player is struggling, go back to square one - the batting tee. This takes the speed out of hitting and allows the player to relax and take consistent swings. Drills should help create and develop a focus that good hitting requires good balance and rhythm.