Stuart Lancaster insists England had to keep Henry Slade in reserve

• Slade scored a solo try to cap an accomplished display against Uruguay• ‘We’ve got to strive for balance,’ insists LancasterWhen Stuart Lancaster sent out what may yet prove to be his last England selection, he would have known the likely outcome – a try bonanza as England thrashed Uruguay 60-3 in a performance sparked by a backline of youth and brio. Henry Slade, seen already as the much-longed-for answer to England’s problem position of inside centre, was given his first taste of World Cup rugby, albeit too late to affect the outcome of England’s campaign. He finished the night with a sol…