T.S. Eliot was the quintessential conceptual young genius. The extended and gradual growth of the experimental Shakespeare was clearly puzzling, and perhaps uncomfortable, to the conceptual Eliot, whose own life cycle of creativity was so different.
Few, if any, domains, and certainly none in the arts, have a single, fixed set of rules and practices, that are accepted and followed by all practitioners. Instead, many if not most disciplines simultaneously have several different sets of rules.