Saracens plan for longevity at the top reinforced by Owen Farrell’s focus

• European Cup final win hints at a lot more silverware to come• Billy Vunipola: ‘It’s amazing for someone so young to be so driven’As Brad Barritt and Owen Farrell triumphantly hoisted the European Champions Cup skywards there was no question Saracens had just achieved something truly special. Only one previous English club – Leicester – has ever won back-to-back European titles and no team on the continent has even gone 18 European games unbeaten. Even more significantly, the manner in which this latest heist was executed hinted at a whole lot more silverware to come.Whether or not that incl…