Why can't NBA players shoot free throws??

These guys kill me! They get paid millions of dollors to play a game and they can't take it serious enough to work on their games during the off season. How much money does Shaq get paid per season? And he can't hit half of his free throws? Shaq, you got a gym IN your house, go in there during the summer and shoot about a 1000 a day. It is all about repitition. Get you a ritual that you will use everytime you go to the line. Take the ball dribble 3 times, take a deep breath, bend your knees, come up in a smooth motion with a good release and rotation on the ball. Do the exact same thing everytime. If you do that 1000 times a day for a whole summer there is no way you won't at least shoot 75% from the line. There will be no more Hack-a-Shaq at the end of games. It got so bad this season Coach Riley would take you out at the end of close games because he knew you would brick your FT's. Remember the old days of Magic and Bird and even Jordan? Every off season they would take the weakest part of their game and work on it until it became one of their strengths. Magic had problems with FT's also but he realized that being a point guard and having the ball in his hands most of the time that he would get fouled a lot. He worked on it until the opposing team would try to foul anyone but him. When Jordan first came into the league he couldn't hit an outside shot. All his points came on drives to the basket. But after a while teams started playing off him so he couldn't drive and he was forced to make outside shots. He couldn't do it consistantly so he had to work on that part of his game during the off season. He came back the next season and as we all know became unstopable. All I ask is put a little time into it. It would be different if you had shown any improvement in your career but it seems that you have gotten worse. I shouldn't be only talking about Shaq there are more. Tim Duncan, Ben Wallace there are many more. Listen, they are called FREE-throws for a reason. Nobody is guarding you, your a professional. Make your free throws!!!!