The best coaches will always be learning and considering new theories and results from other coaches to figure out the best way to help their clients achieve their fitness goals. One of the keys to becoming a truly great coach is accepting the fact that you don’t know everything. Just because you think you know the best way to achieve a certain objective for a client doesn’t mean there might be a better method, or a little tweak you can do which will speed their results or break a perceived limit.
One of the newest methods to train those who work with athletes is CrossFit. The idea behind that system is to constantly vary the workouts and train with high intensity, which mimics the intensity of most sports. Like any system though, it needs to be tweaked for the specific goals of the athlete you are training. For football, you would want to be adding more of a strength component and toning down the bodyweight movements. For a soccer player, it might be heavier on sprint work and explosive lower body movements. CrossFit is great for overall conditioning of any athlete in the off season or during their season, but care needs to be taken with the more complex Olympic lifts which have the potential for injury and should generally be avoided at the heaviest weights or going to failure when they are included in any type of volume.