Equipping ourselves with the knowledge of the subject is the most time-efficient and empowering process to aid teaching. Subject knowledge-led development has somewhat fallen to the wayside for teaching strategy, and the two should work hand in hand, rather than one steal time from the other. I would stand by the view that this is one of many ways that we can halt the large turnover of teachers leaving the profession: by giving them the tools they need to feel confident with content.