Throwing my 10p in, I'd personally put malan up at 3, not had a great NZ tour but who did from those that went home and returned. I like his grit and determination and was possibly the best batsman on show in OZ which I certainly didn't expect.
I also think Vince is worth another shot but swap him and malan around, maybe odd but hear me out. When I watch him I think of Bell, lovely, flamboyant player to watch bat when in full flow, protect him a bit more against a moving ball and he'll be a good batter capable of scoring heavily.
I agree with most, Root doesn't appear best fit for a captain to me, his persona appears to me that he's slightly friendly with everyone, that could mean that he may not want to upset people, he's a likeable character, let him be the batter everyone knows he's capable of and play his jokes in the changing room which may relax him more and allow him to forget the pressure of professional sport. I'm probably way off the mark with that analysis, as you don't see everything but its my perception from snippets you do see.
My captain? Bairstow, he speaks so well about the game in detail, comes across as a great thinker of the game, but is keeping, batting and being a skipper too much, probably and I wouldn't take the gloves off him thats for sure.
Another failing imo is England's naivety towards spin. They have a batting coach, fast bowling coach, fielding coach, head coach, any other coach/specialist on every tour, why not a spin bowling one? At the minute they have a consultant, what use is a person that they can only use x number of days per year, when most of which become used whenever an asian side tour. take Ali for eg, he may well not be good enough to be Englands no 1 spinner, but how can he develop/improve or just get out of a rut when there isn't a specialist there that he can talk to get ideas from?
But I think the biggest downfall is the neglect that England pay to test cricket away from home, they play barely any tour matches any more to help them prepare or go out in time to get used to conditions, instead they play more ODI's and T20 because of money, understandable it is a business, but doesn't help the players.