imo your post didn't make sense.
In real life, if you just swung the bat down the middle everytime then you wouldn't hit anything, that is what you are doing when you just swing it in the show.
You're not deciding, "okay the ball is gonna be down and away" and you place the left stick there before the ball is thrown, you're waiting til the ball is thrown and then pushing the stick in the direction the ball is headed to.