We kept winning in his absence because of Carrick. Once he gets back, I'm sure our defense will be stronger because with Carrick and Blind they will have better protection. Yeah, for years, English people has been saying that about Barry and they kept on playing him in the national team instead of Carrick, with zero output.
Daley Blind is like a Michael Carrick, their game is more about anticipation and very little about physicality, hence their game isn't obvious. The defensive troubles we have had are not down him, rather down to him playing alone in the central midfield(All around him were attacking midfielders who provide little to no defensive assistance to him). Every time I see Besic, I see him a red card waiting to happen, whereas Blind always an accurate long range shot in his armor(like that top class finish against WBA). Honestly, there's no need for argument, time will prove who is wrong and right.