England's star trio are unable to operate simultaneously - what's the verdict?
Having secured six victories out of six, zero goals allowed and tournament placement confirmed with matches remaining, Three Lions boss Thomas Tuchel could suggest he has made the right selection choices.
However, in the build-up to Thursday's home game against Serbia, he initiated discussion when he said that three of the country's best players - Jude Bellingham, Phil Foden and Harry Kane - cannot play in the identical lineup.
"Currently, if we maintain the formation, they cannot play.
"They can but not with current tactics, not maintaining equilibrium that we established and not in this formation that comes also with wingers who are highly specialized in their positions. We play at the moment with defensive, central, attacking midfielders and striker."
From certain starters to fighting for spots
Foden and Bellingham have been deployed on the flanks for England in the past, but the manager's choices indicate that Marcus Rashford and the Gunners' star are his preferred options on the wide areas respectively.
So can Bellingham, Foden and Kane coexist in the lineup?
Former Three Lions boss certainly thought so.
Bellingham, Foden and Kane were selected for each England's seven matches at last summer's tournament in Germany, where Southgate's side were defeated by Spain in the final.
In the 16 games the trio have played together, England have secured 10 victories, drawn three and suffered three losses, netting 36 goals and letting in 14 strikes.
Strategic view: Versatile Foden offers solutions
Tuchel has utilized a 4-2-3-1 formation that alters structure when England attack.
The Aston Villa player has been the primary attacking midfielder because of his impressive ball progression, strike quality and capacity to penetrate the area when the number nine withdraws.
Tuchel has discussed favoring dedicated wide players. The wide attackers regularly feature on the wings and can hold the ball well, engage in one-on-one situations, and appear in scoring positions.
Behind this front four, Tuchel plays with a midfield two consisting of a holding midfielder and one with more license to contribute to the attack.
What solutions exist for the trio?
Foden and Bellingham would be vying against other creative midfielders for the attacking midfield position, with Kane probably featuring up front.
Foden could play as the number nine, which theoretically could permit both Bellingham and Foden to play at Kane's expense.
There is an alternative approach all three could play in this system and Tuchel alluded to it this week.
"At Manchester City, he plays almost like a box-to-box or creative role, so maybe during the next months we regard him as a central midfielder," he said.
Foden has been used in a more all-purpose midfield role this season.
That has permitted him to contribute from midfield and could categorize him as the central midfielder, alongside a holding midfielder.
This would then allow Bellingham to play as the number 10 and Kane as the nine.
Irrespective of whether Tuchel opts to structure the side like this at the World Cup, what bodes well is his readiness to exclude star names in the pursuit of tactical equilibrium.