balls down the middle of the court is no longer working. let me tell you. jennifer tried that at New Haven, and it didn't work. Venus and Serena know about this already, and Venus has learned to get out of her own way, or not over hit and just put the ball back in play when they do the "down the middle" play. Just like jennifer. She "worked" on her backhand that still to me really sucks, but she new that everyone always attacked that side. To me really, when she plays the williams sisters, she can't hang with the backhand to backhand ralleys. She doesn't have a good down the line back hand. She does hit it against the other players on the tour during the early rounds, but i remember asking myself why doesn't she hit it down the line against them? that is what she needs to improve to "try" and "challenge" the sisters. She needs to really really improve on her serve and backhand!