Personally, I think that the issue is far more deep rooted.
As a father of a (biased opinion possibly) reasonably talented footballer, who plays for a local club team, and in the advanced squad for MK dons, there seems to be a big problem with what the way forward is for development, this goes from under 10's upwards. There are a lot of talented kids about, who simply lack the direction and identity with regards to what is expected of them, so much so that there is a massive disconnect even between different coaches at the same club.
I dont blame any of our players, nor any of the coaching staff, the issue is far more fundamental in my opinion. There is a culture of bringing a disparate group of variably talented players together, expecting them to know what to do in a very short space of time, which does not happen.
dare I say it, sometimes the smaller countries can have less of a disadvantage, as they focus on one area of sport, rather than trying to be all things to all people, they also tend to have a "national football identity" which can be called upon to link the parts together. Germany, Italy, Brazil, Argentina, heck, most of the South American nations all play a style of football which can be understood. With refinement, players can be brought together based on this style, and know what it is that they are trying to achieve. this provides a strong base for a coach to work with.
The England manager has talent to call upon, in some areas, but then mostly struggle to bring that talent together.
If at the grass roots level there is no coherent strategy to football development in this country, we are going to turn out some good footballers, who with time and patienence can work fabulously at club level, but I fear a strong national side may be unachievable, unless we pick a team of players who fit the design for the national team, who are good enough.
I am probably not explaining myself very well, but I can see the problems, as one who is struggling to understand the reasons for my child being confused by irrationally complex training exercises, and not seeing an overall plan for development which can be evaluated, it may take some time to work this one out, if it is even possible.