But as D alluded to, even with a back three and protection, we still went through spells like this last season where they’d concede a lot, regularly.
Perhaps they just aren’t good enough, full stop? I had high hopes for Christensen but he keeps making mistakes. I think Rudiger is a good player but more of a secondary CB and not the main man there (which I think has always also been true of Cahill). Luiz is, well, Luiz...
Koulibaly and Rudiger would be the bollocks, IMHO