50
by SJG99
If we want to play 3 at the back we've currently got Howkins, Ekpiteta, Stojsavljevic and O'Brien, +Bennett for cover. 4 CBs plus one as cover. (4+1)
Last season we had Franks, O'Brien, Demetriou +Bennett and Pipe for cover (3+2) and Poole came in for half a season (which happened before Franks had to retire, suggesting the revised plan with some of the cup run money confirmed was to have 4+2 CBs).
This doesn't entirely rule out us getting one more CB in, though it does assume all the signings are intended to play as CBs rather than elsewhere.
NB O'Brien is suspended for the opener, but that's only one game. The loss of five players (Day, Butler, Demetriou, Poole and Franks) who appeared in 190 games between them is a far bigger deal in the bigger picture.