There is another point here - now that we have FINALLY found out that Jonny, at 5, knowing that he is first name on the teamsheet, is an absolute legend...why would anyone want to give him a different role?
Particularly one that wrecks a tall blokes knees, even more particularly after a protruding compound fracture?
Foakes is as good a keeper as I have seen - and I am old enough that I saw Bob Taylor in his later years and Jack Russell. Unless he is so hopelessly exposed by extreme pace that he becomes a tail ender, which is not likely, he should be in the side.
Ony issue is how to get six guys in to five slots.