I think at least part of the 'issue' with Moore is both the fact that he has been around a long time and also, crucially, that he is our captain.
If he is a new 2nd fiddle, he gets a pass for his footballing shortcomings - and if he isn't captain he isn't under the same scrutiny.
There is a propensity for centre-backs to be made captain in English football - especially if they've been around a while. And whilst I quite like Moore, I'm not convinced he is a 'leader'. I mean no disrespect with that. I think he is an integral part of the team and would, if manager, make that clear to him.
Personally I'd make Cam Brannagan captain and let Elliott Moore concentrate purely on defending.
I reckon that, individually, both players would benefit.
As would the wider team.