"There's a first for everything" is how we got Jason Roy opening in a test match in England against Cummins, Starc et al 😂
You want to move Root about on the back of him having scored nearly 700 runs in 3 tests batting at 4?
I don't think fitness is just an issue for 'modern players', keeping in India is physically and mentally taxing, can't expect anyone to come out potentially second ball of the innings after keeping all day and perform to their best. Look at Sangakkara, one of the all time greats, and his batting record when was keeping as opposed to when he wasn't.
If England want to give Lawrence time to go away and work on his game, Bairstow is a pretty obvious candidate. Part of me would like to see Bracey given a go but not sure about putting another leftie in the firing line against Ashwin.
So you are saying superstition in batting position is key to success. Well, if you can bat, you should be able to bat at any position depending on the requirement of the team.
Well if you try something new and it fails doesn't mean you stop trying , do you?
Jason roy is a great white ball opener and england gave him a chance to open in tests thinking he will succeed but he didn't, so be it. trial/errors are part and parcel of anything.
Virendra sehwag always batted in the middle order for his domestic side, but india gave him a chance to open in tests and he flourished.
there are many other players who bat different positions at international level from their domestic side.
root batting at no 3 doesn't make him any lesser batsman than at no 4.