The most important thing to understand when training athletes is the difference between G.P.P and S.P.P. Also, it's important to understand that mastery in a specific discipline does not mean mastery in weight training. In fact, it is usually the opposite; master of one thing, beginner of another. This is very lucky for you, whether you are a coach or an athlete. What this means is that you don't need advanced or fancy training methods to achieve results. Besides the huge pile of dung that is "sport specific training", the misunderstanding of training mastery by elite athletes is ruining training.
The following is an excerpt from the new book, 5/3/1 Forever. This book outlines how to program all areas of your training including assistance work. Yes, that's right; no more questions about assistance work. Everything is tied up, nice and tight AND allows for a lot of personal choices. Each and every program detailed in the book has a specific assistance profile which allows you to plug in a variety of different movements; all customized to you.
When I was first introduced to pull throughs, I was incredibly underwhelmed. To get any sort of effect, the reps had to be pushed very high and the weight was frustratingly limited due to the fact that you can't load the exercise with any more weight than you can get into position with. But I did them anyway, because a lot of strong folks swore by them, and I assumed they must have some magical properties of some kind.