Statistics. Make sure you as the coach revuew each game tape and do all the statistics and then compare them to the chart keepers charts that they do while the game is being played. This will help you find out if your stat people are accurate.
Chart shot attempts and makes on a court diagram, circle the makes with the players number and just put the number down if the shot is missed. Place the number of the made or missed shot on the chart where they took the shot fromonnthe floor.
Make sure you get assists, turnovers and the type of turnovers, rebounds offensive and defensive, keep track of defensive mistakes.
Stats are only good if they are accurate. My assistant coach and I always charted the games of the tapes immediately after the games rather they were played at home or on the road.