England's star trio struggle to play together - what's the verdict?
After achieving six consecutive triumphs out of six, zero goals allowed and a World Cup spot secured with two group games to spare, national team coach Thomas Tuchel could suggest he has got all of his big qualifying decisions correct.
However, in the preparation for Thursday's home game against Serbia, he raised questions when he said that three of the nation's top talents - Jude Bellingham, Phil Foden and Harry Kane - struggle to perform in the equivalent formation.
"Presently, if we stick with the system, they won't fit together.
"They might but not with current tactics, not preserving harmony that we established and not in this formation that comes also with wingers who are essentially experts in their positions. We presently employ with defensive, central, attacking midfielders and striker."
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 his team selections imply that the Manchester United forward and Arsenal's winger are his first choices on the wing positions respectively.
The question remains whether Bellingham, Foden and Kane play together?
The previous England manager evidently thought it possible.
Bellingham, Foden and Kane featured in every England's seven fixtures 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 simultaneously, England have triumphed 10 times, drawn three and suffered three losses, scoring 36 times and conceding 14.
Tactical insight: Foden's flexibility provides alternatives
Tuchel has utilized a 4-2-3-1 formation that transforms formation when England attack.
The Aston Villa player has been the main number 10 because of his impressive ball progression, strike quality and capacity to penetrate the area when the number nine withdraws.
Tuchel has spoken about preferring natural flank operators. 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 one defensively strict player and one with more license to support offensive play.
What solutions exist for the trio?
Foden and Bellingham would be battling with other creative midfielders for the attacking midfield position, with Kane likely to start up front.
Foden could feature as the number nine, which theoretically could enable both Bellingham and Foden to operate without the captain.
There is an alternative approach all three could coexist effectively and Tuchel alluded to it this week.
"For Man City, he functions as a box-to-box or creative role, so potentially in future we view him as a number eight," he said.
Foden has been utilized as a flexible midfielder this season.
That has allowed him to take responsibility deeper and could categorize him as the number eight, paired with a defensive anchor.
This would then enable Bellingham to operate as the creative force and Kane as the nine.
No matter whether Tuchel decides to set England up like this at the international competition, what appears positive is his preparedness to omit established stars in the name of balance.