If we can view Europe's largest training centre of Newmarket as a microcosm of the wider racing world, then events in the last week give a pretty concerning snapshot of the future of the sport. On the positive front, there was a first winner for the town's newest trainer, Terry Kent, who, at 53, is also one of the longest-serving members of its workforce, having previously been a jockey and worked for trainers Michael Jarvis, Julie Cecil, Saeed Bin Suroor and Roger Varian. Another recent recruit to the training ranks,...