Pavel Buchnevich
Drury and Laviolette Must Go
Kind of odd that Spurs could very well have 5 players in the English national team's starting line-up:
Walker
Rose
Dier (not considered home grown because he grew up in Portugal)
Alli
Kane
But still they might actually run out of home grown players.
As it stands they got Walker, Rose, Alli (will soon turn 21 - not sure if he is considered under 21 or not next year), Kane, Davies, Trippier and Winks (same as with Alli).
So even Spurs with such a significant imprint on the English national team is struggling to find enough English talent if they want to have a full 25 man squad.
Therefore you end up with players like Barkely and Fabian Delph being highly valuable. It makes more sense with Barkely than Zaha I guess - who has also been linked to Spurs lately.
If this in the end benefits England I'm not so sure. He is a key player for Everton, but right now he would be on the bench for Spurs. Not that I can see Spurs paying 50m (or whatever) on a guy who would basically be Eriksen's back-up. Even if they spent a ridiculous amount of money on Sissoko.
You forgot Cameron Carter-Vickers and Josh Onomah who are full time first team players. I think Kyle Walker-Peters and Marcus Edwards will also join their first team full time next season. I don't think Spurs is a good example. They have a lot of young English talent and use a number of them. A team like Chelsea might be a better example for the point you are making.