Romero is a bit overrated but still very good. He isn't great -- none of our defenders are. As bad as we are in attack, our defense is still our weakest link imo. He isn't nearly at Vert, Toby level, and never mind Ledley. Definitely better than Sanchez. And I love Dier but he makes too many mistakes for someone with his experience.
Stats show our defence is more decent than we think or give it credit for. However, when we make mistakes, they are so fucking avoidable it stays in the memory for longer. Lenglet and Romero are our strongest 2, the rest is a coin flip for me.
MF is our weakness creatively at the moment, plus fans believing a midfielder from fucking Brighton and Hove Albion is our saviour. Bentancor amd Holjberg are great, but we need something which is not anywhere in our squad at the moment.