The problem with trying to adopt a 'Buying English' approach similar to what Bayern do is that unfortunately there just isn't the high standard of young English players coming through to be able to do that, Hence why the national team is failing. You could argue that when we have done that it hasn't really worked out in recent times with Young, Smalling and Jones (although the latter 2 could still make it, The progress has been slow from them). When you think about young English players who would genuinely improve our squad at the moment I think apart from Sterling then the only 2 obvious candidates are Ross Barkley and John Stones, I would be very happy if we got Stones as he is a capable RB and an excellent CB with the ball at his feet, Barkley would also be great cover from the bench to provide energy and drive, He wouldn't come cheap at all though, For the price it would cost to get him we could easily buy the likes of Vidal, Hummels etc.