The nation with 6 starters that play together for the best club side in the world in 2014 won the World Cup. I *know* Bayern didn't win the Champions League this year, but they did in 2013 and also took the Bundesliga (probably the best league), German Cup, UEFA Super Cup and FIFA Club World Cup in 2014.
6-7 of the German team were in the Germany u21's 4 years ago. I bet majority of our u21's from 4 years ago playing in the championship or playing in prem reserves being kept out by **** foreign players.
Here you go http://www.dailymail.co.uk/sport/football/article-2336272/England-U21--team-2009-ended-now.html
'cos hardly any of that nations league has any of its players in it the percentages can be done by maths I guess, but take a look at the majority of the Premier league and then see how many English players there are.
I think the Germany league is motivated by football. The English Premier League is motivated by gushing cash for an old man in Australia.