I've mulled it over for a while. I don't think it's as much a lack of talent as it is a lack of proper conditioning, and game-like practice. Those two things contribute to both injuries, and the perception of lack of ability. You don't learn to play football watching North Dallas Forty, and a Chuck Noll video on tackling. You need to physically do it, and work with pads on to experience the actual motions, and reactions needed. The same applies to all facets of the game. It's a lot like running. Usain Bolt wouldn't have been the runner he was had he trained using 12 oz curls of beer, and eating Chicago deep dish pizza. Mary Lou Retton didn't get as good as she was by watching Nadia Comaneche videos. It's all in the physical preparation of actually performing what you'll do in competition. I've always considered talent as being the ability, not the results, because results come through hard work, and proper training.