England consistently produce 9s and decent central midfielders with good energy and goal threats, but that's it. The wide talent is pretty much all limited to being good in one direction, defensive midfielders of even mid-table quality are completely non-existent and the center backs looks okay but not at the Terry/Campbell/Ferdinand level.
Long-term, I think one of Kane/Sturridge should be a very, very good 9, Sterling will be a good winger, Wilshere a solid CM and Shaw and Hart should be strong starters in the back 5.
Smalling, Chamberlain and Clyne need to develop into strong players, a DM needs to fall out of the goddamn sky and one of Stones, Jones or Dier needs to develop well.
Not a lot of margin for error.