It doesn't matter what sports you or I played or play. And within the training community you will find a wealth of different opinions, running the gamut. I think most trainers are helpful on recovery when they're acting as physical therapist, and I think a disturbingly large percentage give harmful advice when it comes to general training and injury prevention. Way too many reps for weight training, far too much over stretching, aerobic "training" which IMO is best case useless, and far too little recovery time between workouts. The consequences of which are greatly magnified for athletes in a physically demanding sport like the NFL where they play on average 1 game a week for 16 weeks. And non-bills can extend that into as many as 4 playoff games.