This is how I interpret it:

To get your performance out of the left column and into the right column, do the stuff in the middle column.

Listen: Most aspiring voice talents fail because they don't know how to listen. More to the point, they're so in love with the sound of their pretty, pretty voice that they don't pay attention to the story and CAN'T TAKE DIRECTION.

If you can't or won't listen to your coaches, your demo producers, your fellow voice talents, or your studio directors, you are ****ed. You have no shot of getting anywhere in this industry.

Study: Like any business, you need to understand the industry and your place in it. Specifically, understand the different genres (commercials, explainer videos, etc.) and which ones you can and can't do.

Be realistic! Everybody wants to do cartoons. Everybody wants to do video games. But not everyone is good at it.

Practice / Develop Your Technique: Practice your breath control, mic technique, script interpretation, etc.

Focus: Stay focused on the essentials.

The fundamentals, as they say in sports. Practice your dribbling and your footwork, keep your eye on the ball, all that crap. They call it fundamentals for a reason!

Experiment/Improvise: Improvisation classes are a huge help. They will loosen your reads and give you license to make stronger choices.

Yes, I know that scripts are set and you can't make stuff up. HOWEVER, good storytellers make strong choices in the moment.

Community colleges and local theater groups offer these classes, some of them for free.

Be Bold: make bold choices when you narrate and commit to them.