Taunting commentary
While pitching remain idle and the announcers will start taunting.

Dominating team
When you have franchise go to franchise mode. When you are there go down to the GM Office and then Roster Management. Select the Player Editor option then use the Left Analog stick to find your franchise team. After you find the team the game will show a list of all players on it. Select any one of them and you will be able to change their attributes to make them better.