England's star trio can't play together - what's the verdict?
Having secured six victories out of six, zero goals allowed and World Cup qualification assured before the final rounds, Three Lions boss Thomas Tuchel can argue he has made the right selection choices.
Yet, in the lead-up to Thursday's domestic match 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.
"Presently, if we stick with the system, they are unable to feature.
"It's possible but not within this system, not preserving harmony that we developed and not in this formation that also includes wingers who are like specialists in their positions. We currently utilize with a six, eight, a 10 and a nine."
From certain starters to fighting for spots
The Manchester City and Real Madrid stars have been utilized out wide for England in the past, but the manager's choices suggest that Marcus Rashford and the Gunners' star are his primary selections on the left and right flank respectively.
The question remains whether Bellingham, Foden and Kane play together?
Former Three Lions boss certainly thought so.
Bellingham, Foden and Kane featured in every England's seven games at last summer's tournament in Germany, where Southgate's side lost to Spain in the final.
In the 16 games the trio have played simultaneously, England have won 10, drawn three and lost three, scoring 36 times and conceding 14.
Analysis: Foden's versatility gives Tuchel options
Tuchel has played a 4-2-3-1 system that transforms formation when England attack.
The young midfielder has been the primary attacking midfielder because of his strong ball-carrying, shooting ability and capacity to penetrate the area when the number nine withdraws.
Tuchel has mentioned preferring specialist wingers. Saka and Gordon play out wide weekly and can hold the ball well, challenge defenders, and enter the area to finish.
In midfield behind the attackers, Tuchel plays with a midfield two consisting of a holding midfielder and another with greater freedom to contribute to the attack.
What solutions exist for the trio?
Foden and Bellingham would be battling with attacking alternatives for the creative hub, with Kane likely to start up front.
Foden could play as the central striker, which theoretically could permit both Bellingham and Foden to feature instead of Kane.
There is one way all three could coexist effectively and Tuchel hinted at it this week.
"At Manchester City, he functions as a central or attacking midfielder, so perhaps in coming months we view him as a box-to-box player," he said.
Foden has been used in a more all-purpose midfield role this season.
That has enabled him to operate from deeper areas and could make him an option as the number eight, paired with a defensive anchor.
This would then permit Bellingham to feature as the attacking midfielder and Kane as the nine.
Regardless of if Tuchel opts to structure the side like this at the global tournament, what bodes well is his preparedness to omit established stars in the pursuit of tactical equilibrium.