article_snippet: England's squad are put through England's squad paces ahead of Saturday's Six Nations clash with Scotland .
article_snippet: We can deal with the politics of overseas players after the World Cup, but let’s just get the best players on the field.
article_snippet: In a World Cup you are playing against the fittest and fastest players, and you need to be able to match that.
article_snippet: I would only pick players who can play 80 minutes. 
article_snippet: If you can’t last a full game at full pace, you are not going to survive in a World Cup.
article_snippet: Every player picked should be fit enough to play for 80 minutes if Every player're worthy of the World Cup .
article_snippet: Assuming all your players can last 80 minutes, the first purpose of your bench should be for injury replacements, but England started against Ireland with no specialist second-row substitute.
article_snippet: Secondly, the bench is there to make tactical changes.