This is a Textbook Swing...

I am not sure if the thought bubbles truly reflect what was going on while Jay-Bird was at bat but I couldn't resist. Notice the shoulders are even, great follow-through and belt-buckle is facing forward at the end of the swing. Textbook Swing.

This is Not a Text-Book Swing! But We've Broken It Down So You Can See What's Wrong With This Picture!

First, notice the right shoulder dropped during the swing; this will cause the batter to hit a ground ball more than likely straight to the short-stop. The batter should try to keep his shoulders level/even throughout the swing.

Secondly, notice the weight shift and the position of the batter's hands. You've probably heard it on the field and I know Trabert says it all the time, but you should let your hands guide you through your swing. The hands and extension of the bat should be the catalyst for what turns your hips and shoulders.