Too often inexperienced trainers get caught up in thinking there is a cookie cutter way lifts should be done. This does a great job of showing how tiny variances in technique are inevitable.
Workout:
Burgener Warm Up
snatch practice
Snatch Singles 1-1-1-1-1
then AMRAP 15 minutes
5 - thrusters (135/95)
7 - burpees
9 - c2b pull ups