US-based coach, John O’Sullivan, founder of Changing the Game Project and best selling author, provides a perspective on the potential pitfalls of the US development model. As our ability to accurately measure players’ tangible development statistics improves, are we losing sight of the intangible factors which can’t always be measured? The cost of focussing exclusively on the numbers may be greater than we imagined. In 2005, the coaches at one of the top English Premier League Youth Football Academies held one of their semi-annual meetings to…