Aye, that's the thing though, it kind of has to be Rubezic that leaves for Pollock to come in. Can anyone's heart really survive a defence of Rubezic and Pollock? Mine couldn't, it'd be frightening. We'd win a lot of headers. They're both right footed and not really good enough at football to play on their wrong side. They're both young (for defenders) prospects that we'd look to sell on and so must start. We'd have to play a back three to accommodate that. Every week. If/when we miss out on European group stages next season, we don't have the additional games for which to carry additional squad players and offer rotation. Defence isn't generally an area that lenda itself to regular rotation and we don't have a manager who can navigate that anyway.
I think we can really only afford one project in defence at a time and, for all his faults, we've chosen Rubi at this time. Pollock would be a great signing, but we'd be doing it just because he's available and for fear of missing out. The timing is wrong sadly.
Also, Milne might have something about him and we need to fully investigate that.