In an ideal world i'd like 2 CB's as well, but if i had to chose i would go for a LB instead of another CB. A quality LB with end product makes such a massive difference! So does having two good CB as well, but not to the same degree imo.
Our CBs have been absolute f***ing dogshit for the last few seasons though. Whereas Haidara has promise.
I get your point, maybe i'm thinking like this because there's not a fucking chance we'll get 2 CB. Also, while i do agree that all we have is shit, one of them mig actually perform better than before with a quality centre half next to him in a functioning team.