"They have so fundamentally flawed techniques it's ridiculous. They shoot the ball flat. They all stand upright, there's just so many things they do incorrectly"

Rick Barry is slamming the basketball techniques of an unidentified group. He is saying that their strategies are so flawed that it is ridiculous. He particularly mentions that they shoot the ball flat, indicating that they do not put enough arc on the ball when shooting. He also discusses that they all stand upright, meaning that they do not flex their knees when shooting. These 2 issues are a sign of a lack of appropriate method and could be the cause of lots of missed out on shots. Rick Barry is implying that the team needs to improve their method in order to be successful. He is also indicating that the group requires to practice more in order to remedy their mistakes. Overall, Rick Barry is trying to highlight the value of correct technique in basketball and how it can make or break a team.