England's star trio can't play together - does the manager have a point?
With six wins out of six, no goals conceded and tournament placement confirmed with matches remaining, national team coach Thomas Tuchel could suggest he has got all of his big qualifying decisions correct.
Nevertheless, in the build-up to Thursday's home game against Serbia, he sparked a debate when he stated that three of the England's elite footballers - Jude Bellingham, Phil Foden and Harry Kane - cannot play in the equivalent formation.
"At the moment, if we maintain the formation, they cannot play.
"They might but not with current tactics, not for the balance that we developed and not in this formation that incorporates wingers who are highly specialized in their positions. We presently employ with specific numbered positions."
From guaranteed positions to competitive roles
Foden and Bellingham have been utilized out wide for England in the past, but the manager's choices imply that the Barcelona loanee and Bukayo Saka are his preferred options on the wide areas respectively.
The question remains whether Bellingham, Foden and Kane coexist in the lineup?
The previous England manager apparently believed they could.
Bellingham, Foden and Kane were selected for each England's seven games at the European Championship in Germany, where Southgate's side were defeated by Spain in the final.
In the 16 fixtures the three have featured alongside each other, England have won 10, tied three matches and suffered three losses, registering 36 scores and letting in 14 strikes.
Tactical insight: Foden's flexibility provides alternatives
Tuchel has employed a four-two-three-one setup that transforms formation when England attack.
Morgan Rogers 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 spoken about preferring specialist wingers. The Arsenal and Newcastle stars consistently operate in wide areas and can hold the ball well, engage in one-on-one situations, and appear in scoring positions.
In midfield behind the attackers, Tuchel plays with a midfield two consisting of a disciplined defensive presence and a partner with attacking liberty to support offensive play.
So how could Tuchel use these three players?
Foden and Bellingham would be vying against other creative midfielders for the attacking midfield position, with Kane likely to start up front.
Foden could feature as the central striker, which theoretically could permit both Bellingham and Foden to feature instead of Kane.
There is a potential solution all three could feature together 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 box-to-box player," 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 advanced playmaker, alongside a holding midfielder.
This would then allow Bellingham to play as the creative force and Kane as the striker.
Regardless of if Tuchel opts to structure the side like this at the World Cup, what seems encouraging is his preparedness to omit established stars in the interest of team harmony.