England's star trio are unable to play together - what's the verdict?
After achieving six consecutive triumphs out of six, no goals conceded and World Cup qualification secured with two group games to spare, national team coach Thomas Tuchel could suggest he has got all of his big qualifying decisions correct.
Yet, in the preparation for Thursday's domestic match against Serbia, he initiated discussion when he claimed that three of the England's elite footballers - Jude Bellingham, Phil Foden and Harry Kane - struggle to perform in the identical lineup.
"Currently, if we keep the structure, they cannot play.
"It's possible but not within this system, not preserving harmony that we developed and not for the structure that comes also with wingers who are essentially experts in their positions. We play at the moment with defensive, central, attacking midfielders and striker."
From guaranteed positions to competitive roles
The Manchester City and Real Madrid stars have been used in wide positions for England in the past, but the manager's choices indicate that the Manchester United forward and the Gunners' star are his first choices on the left and right flank respectively.
So can Bellingham, Foden and Kane play together?
The previous England manager evidently thought it possible.
Bellingham, Foden and Kane featured in every England's seven matches at the European Championship in Germany, where Southgate's side were defeated by Spain in the final.
In the 16 games the stars have performed alongside each other, England have triumphed 10 times, tied three matches and lost three, scoring 36 times and conceding 14.
Tactical insight: Foden's flexibility provides alternatives
Tuchel has played a 4-2-3-1 system that transforms formation when England attack.
The Aston Villa player has been the key creative force because of his excellent dribbling, strike quality and capacity to penetrate the area when the number nine withdraws.
Tuchel has mentioned preferring natural flank operators. The wide attackers regularly feature on the wings and can retain the ball skillfully, engage in one-on-one situations, and appear in scoring positions.
Supporting the attacking quartet, Tuchel utilizes two central midfielders consisting of a holding midfielder and one with more license to join the forward movement.
What solutions exist for the trio?
Foden and Bellingham would be vying against other creative midfielders for the number 10 role, with Kane likely to start up front.
Foden could operate as the central striker, which theoretically could allow both Bellingham and Foden to feature instead of Kane.
There is one way all three could play in this system and Tuchel alluded to 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 central midfielder," he said.
Foden has been utilized as a flexible midfielder this season.
That has enabled him to operate from deeper areas and could categorize him as the central midfielder, next to a more defensive number six.
This would then enable Bellingham to operate as the attacking midfielder and Kane as the striker.
Irrespective of whether Tuchel decides to set England up like this at the global tournament, what seems encouraging is his readiness to exclude star names in the interest of team harmony.