Gareth Southgate is preparing to rip up the plans he has used so far at Euro 2024 and radically change England's formation in an attempt to get more width from his side and put more of his best players in their best positions.
For Saturday's quarter-final with Switzerland, England are likely to switch to three centre-backs for the first time in a competitive match since the Euro 2020 final against Italy three years ago - and it may mean Jude Bellingham and Phil Foden both playing as No 10s.
That is one of the options that Southgate has been experimenting with in training where, Sky Sports News has been told, he has tried various formations and various players slotted into the different roles.