Kane, Bellingham and Foden are unable to play together - is Tuchel right?
Having secured six victories in six games, an unbreached defense and World Cup qualification secured with two group games to spare, England manager Thomas Tuchel might claim he has got all of his big qualifying decisions correct.
However, in the lead-up to Thursday's home game against Serbia, he initiated discussion when he stated that three of the country's best players - Jude Bellingham, Phil Foden and Harry Kane - struggle to perform in the equivalent formation.
"At the moment, if we stick with the system, they are unable to feature.
"It's possible but not in the structure, not for the balance that we developed and not within the framework that comes also with wingers who are highly specialized in their positions. We presently employ 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 used in wide positions for England in the past, but his team selections indicate that Marcus Rashford and Arsenal's winger are his preferred options on the wide areas respectively.
But can Bellingham, Foden and Kane operate simultaneously?
Former Three Lions boss apparently believed they could.
Bellingham, Foden and Kane started all of England's seven matches at the European Championship in Germany, where Southgate's side were defeated by Spain in the final.
In the 16 matches the stars have performed alongside each other, England have secured 10 victories, drawn three and suffered three losses, scoring 36 times and allowing 14 goals.
Analysis: Foden's versatility gives Tuchel options
Tuchel has utilized a 4-2-3-1 formation that alters structure when England attack.
Morgan Rogers has been the primary attacking midfielder because of his strong ball-carrying, ball-striking and skill in entering the penalty area when the striker drops deep.
Tuchel has mentioned preferring dedicated wide players. The wide attackers consistently operate in wide areas and can retain the ball skillfully, challenge defenders, and appear in scoring positions.
Behind this front four, Tuchel utilizes two central midfielders consisting of a disciplined defensive presence and another with greater freedom to contribute to the attack.
What solutions exist for the trio?
Foden and Bellingham would be vying against other creative midfielders for the number 10 role, with Kane probably featuring up front.
Foden could operate as the main forward, which potentially could permit both Bellingham and Foden to feature instead of Kane.
There is an alternative approach all three could play in this system and Tuchel hinted at it this week.
"At Manchester City, he operates similarly to a central or attacking midfielder, so maybe during the next months we regard him as a number eight," he said.
Foden has been deployed in a versatile central position this season.
That has permitted him to contribute from midfield and could position him as the central midfielder, next to a more defensive number six.
This would then allow Bellingham to play as the creative force and Kane as the nine.
No matter whether Tuchel chooses to configure the team like this at the international competition, what seems encouraging is his willingness to leave big players out in the pursuit of tactical equilibrium.