Why Ponting haven't got rid of McGrath's shadow?

It was Steve Waugh who developed a World Cl Team for Australia with Pontong, Haydos, Warne, McGrath, Lee and Gilly. Even when he retired they played of same order. No Batting order change. Bowlers know when to bowl even before the match. Ponting goes out there and just set the Fielding for the respective batsmen which has been given by the coach with the help of Video ysis. So when the senior pros returned He don't know what to do. Still haven't figured out. He can't think and execute his own plan. He can stick to his Coach's plan