England's star trio struggle to operate simultaneously - what's the verdict?
Having secured six victories in six games, zero goals allowed and a World Cup spot secured with two group games to spare, England manager Thomas Tuchel can argue he has chosen wisely throughout qualification.
Nevertheless, in the build-up to Thursday's Wembley encounter against Serbia, he raised questions when he claimed that three of the country's best players - Jude Bellingham, Phil Foden and Harry Kane - cannot play in the same team.
"Presently, if we keep the structure, they won't fit together.
"They might but not in the structure, not for the balance that we developed and not in this formation that comes also with wingers who are essentially experts in their positions. We play at the moment with a six, eight, a 10 and a nine."
From automatic picks to contested places
England's creative talents have been utilized out wide for England in the past, but his team selections imply that Marcus Rashford and the Gunners' star are his preferred options on the left and right flank respectively.
But can Bellingham, Foden and Kane coexist in the lineup?
The previous England manager evidently thought it possible.
Bellingham, Foden and Kane were selected for each England's seven fixtures at last summer's tournament in Germany, where Southgate's side fell to the Spanish in the final.
In the 16 matches the three have featured simultaneously, England have triumphed 10 times, shared points three times and suffered three losses, netting 36 goals and conceding 14.
Analysis: Foden's versatility gives Tuchel options
Tuchel has utilized a 4-2-3-1 formation that changes shape when England attack.
The young midfielder has been the key creative force because of his impressive ball progression, ball-striking and capacity to penetrate the area when the forward retreats.
Tuchel has mentioned preferring natural flank operators. Saka and Gordon regularly feature on the wings and can retain the ball skillfully, engage in one-on-one situations, and enter the area to finish.
In midfield behind the attackers, Tuchel utilizes two central midfielders consisting of a disciplined defensive presence and one with more license to join the forward movement.
What solutions exist for the trio?
Foden and Bellingham would be vying against attacking alternatives for the number 10 role, with Kane likely to start up front.
Foden could play as the number nine, which theoretically could enable 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.
"For Man City, he plays almost like a number eight or 10, so potentially in future we regard him as a number eight," he said.
Foden has been deployed in a versatile central position 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 creative force and Kane as the nine.
No matter whether Tuchel chooses to configure the team like this at the international competition, what appears positive is his preparedness to omit established stars in the name of balance.