Many team sports could benefit from a scientific approach to management (Moneyball style). But I think the real game changer at the individual, technical skill

Many team sports could benefit from a scientific approach to management (Moneyball style). But I think the real game changer at the individual, technical skills level is systematic video tutorials. Up until a few years ago kids could only learn tricks from other kids on the block or in the local club. Nowadays, there are free apps with detailed video tutorials on receiving the ball, moves, fakes, dribbles, shots, passes, tricks etc. Kids can watch the videos real time and in slow motion or with the different steps broken down and explained.