If you want to become better at something, you have to believe you can be better at it. Most pros go out there work on their weakness, and try to add another dimension to their games. Sometimes these changes may not be as clear or obvious, but they can make differences. Even Lleyton Hewitt says that he's trying to be more aggressive and come to net a little bit more. You need to keep adding things to your game otherwise others will pass you by. Even Martina Navrotilova said that only recently, she has learned to hit one handed backhand confidently, and that she has learned new footwork and that she's tinkering with her forehand to get more topspin. This was about 2 years ago. Your game may not be broken, but you have to look into areas where you can become better. Otherwise, what's the point of practicing? Hit more forehands and be satisfied? If Roddick is going to beat Federer or Hewitt, he's not going to beat him by playing cat and mouse from baseline. In what other ways, can roddick not play cat and mouse from baseline? It's pretty clear,isn't it?