Developing power starts with good technique, but doesn’t end with it. My concern is that movement quality is often referred to without the context of power. Sufficient strength will help drive power, but the velocity must be significantly higher than speed strength or plain maximal strength will be more valuable. You can complex power, but eventually you will have to rest passively. During this time a coach can give feedback or the athlete can support his or her teammates if training in a group. The larger the output, the more passive and longer the rest will be. Volume is needed to master technique and have something to manipulate and taper off of later. Gradual build ups are necessary for safety, as the loads are often heavy. None of this information is rocket science or new, but the principles of power are starting to fade away from cargo cult science. Read the research in the Scandinavian journals, those articles illustrate the physiological responses to coaching protocols.