This is an interesting one. This clip is a breakdown of Pat Cummins, one of the best fast bowlers in the world right now. His action isn’t what you’d call “clean”. There’s a clear change of direction before delivery. And earlier in his career, he did have back issues, including stress fractures. That matters. Because when I work with younger bowlers, I’m usually trying to simplify change of direction. Reduce stress. Create clearer lines. Give the body the best chance to adapt gradually. But here