The Portuguese Primeira Liga does not generate enough revenue for its clubs to compete with the ‘big boys’ of Europe. Despite this, however, 27-times Primeira Liga winners FC Porto regularly compete in the highest reaches of European football and produce a seemingly inexhaustible supply of talented players. So what’s their secret? Portugal’s three major clubs are Sporting Lisbon, Benfica and FC Porto – three big fish in a relatively small pond. Of these, FC Porto is the most intriguing, consistently ‘punching above their weight’ in the…