England's star trio can't operate simultaneously - does the manager have a point?
Having secured six victories in six games, no goals conceded and World Cup qualification secured with two group games to spare, England manager Thomas Tuchel can argue he has made the right selection choices.
However, in the lead-up to Thursday's domestic match against Serbia, he raised questions when he claimed that three of the England's elite footballers - Jude Bellingham, Phil Foden and Harry Kane - are unable to feature in the identical lineup.
"Currently, if we keep the structure, they won't fit together.
"They can but not with current tactics, not preserving harmony that we created and not for the structure that incorporates wingers who are like specialists in their positions. We presently employ with specific numbered positions."
From automatic picks to contested places
England's creative talents have been utilized out wide for England in the past, but his team selections suggest that the Manchester United forward and Arsenal's winger are his first choices on the left and right flank respectively.
So can Bellingham, Foden and Kane operate simultaneously?
The previous England manager certainly thought so.
Bellingham, Foden and Kane featured in every England's seven fixtures at the European Championship in Germany, where Southgate's side fell to the Spanish in the final.
In the 16 matches the trio have played alongside each other, England have won 10, drawn three and lost three, registering 36 scores and conceding 14.
Tactical insight: Foden's flexibility provides alternatives
Tuchel has employed a four-two-three-one setup that transforms formation when England attack.
The young midfielder has been the primary attacking midfielder because of his excellent dribbling, ball-striking and ability to attack the box when the striker drops deep.
Tuchel has discussed favoring natural flank operators. The wide attackers consistently operate in wide areas and can hold the ball well, challenge defenders, and enter the area to finish.
Supporting the attacking quartet, Tuchel plays with a midfield two consisting of a holding midfielder and one with more license to contribute to the attack.
What solutions exist for the trio?
Foden and Bellingham would be vying against Cole Palmer, Morgan Rogers and Eberechi Eze for the number 10 role, with Kane expected to lead up front.
Foden could feature as the main forward, which in theory could enable both Bellingham and Foden to feature instead of Kane.
There is one way all three could play in this system and Tuchel suggested it this week.
"For Man City, he plays almost like a central or attacking midfielder, so potentially in future we regard him as a number eight," he said.
Foden has been used in a more all-purpose midfield role this season.
That has allowed him to take responsibility deeper and could position him as the advanced playmaker, paired with a defensive anchor.
This would then enable Bellingham to operate as the creative force and Kane as the nine.
Irrespective of whether Tuchel chooses to configure the team like this at the international competition, what seems encouraging is his willingness to leave big players out in the name of balance.