Rugby World Cup: Rivals still seeking magic blend of back-row fetchers | Dean Ryan

England are not the only ones craving a winning formula – and over the next few weeks there are certain to be more performers who play their way out of the World Cup than those managing to secure a berthLet’s consider the case of Henry Slade, the gifted Exeter 22-year-old who makes his England debut on Saturday. Most people consider Slade has a decent England career ahead of him. Maybe a few World Cups, but probably not this one.To get into Stuart Lancaster’s squad Slade will probably have to play out of his skin at Twickenham and then cross his fingers until the final 31 are announced after t…