England's star trio can't fit in the same lineup - what's the verdict?
With six wins out of six, zero goals allowed and a World Cup spot assured before the final rounds, national team coach Thomas Tuchel might claim he has chosen wisely throughout qualification.
However, in the lead-up to Thursday's domestic match against Serbia, he sparked a debate 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 maintain the formation, they won't fit together.
"It's possible but not in the structure, not for the balance that we created and not in this formation that incorporates wingers who are like specialists in their positions. We play at the moment with specific numbered positions."
From automatic picks to contested places
Foden and Bellingham have been deployed on the flanks for England in the past, but the manager's choices imply that the Manchester United forward and Arsenal's winger are his primary selections on the wing positions respectively.
The question remains whether Bellingham, Foden and Kane play together?
Former Three Lions boss certainly thought so.
Bellingham, Foden and Kane started all of England's seven fixtures at last summer's tournament in Germany, where Southgate's side were defeated by Spain in the final.
In the 16 games the trio have played alongside each other, England have won 10, drawn three and suffered three losses, scoring 36 times and conceding 14.
Strategic view: Versatile Foden offers solutions
Tuchel has played a 4-2-3-1 system that changes shape when England attack.
The Aston Villa player has been the primary attacking midfielder because of his excellent dribbling, shooting ability and ability to attack the box when the number nine withdraws.
Tuchel has mentioned preferring dedicated wide players. Saka and Gordon play out wide weekly and can retain the ball skillfully, take their full-back on, and arrive in the box to score.
Supporting the attacking quartet, Tuchel plays with a midfield two consisting of one defensively strict player and a partner with attacking liberty to support offensive play.
Potential configurations for England's stars
Foden and Bellingham would be vying against other creative midfielders for the creative hub, with Kane expected to lead up front.
Foden could operate as the central striker, which theoretically could permit both Bellingham and Foden to play at Kane's expense.
There is an alternative approach all three could coexist effectively and Tuchel alluded to it this week.
"For Man City, he functions as a number eight or 10, so perhaps in coming months we consider him as a box-to-box player," he said.
Foden has been utilized as a flexible midfielder this season.
That has enabled him to operate from deeper areas and could make him an option as the central midfielder, next to a more defensive number six.
This would then enable Bellingham to operate as the creative force and Kane as the center forward.
Regardless of if Tuchel chooses to configure the team like this at the World Cup, what seems encouraging is his willingness to leave big players out in the pursuit of tactical equilibrium.