The thing about Roberto is he's not a CM, despite that being his position. He's an odd case, but at the moment he's our best backup for the DM and RB positions. I think it's a bit unfair to ram anyone in our midfield for their performance bar Rafinha to a certain extent. Roberto is a BACKUP player for defensive positions, Mascherano is a so-so CB and a horrendous DM, and Rafinha is a... something(?).
Why Lucho refuses to call B team players up *specifically for situations like this* when they can offer more to the team than the people who are on our bench is beyond me, but the likes of Samper and Grimaldo would have drastically improved that abomination of a showing, and even if they wouldn't have, it couldn't possibly get any worse than what we saw. Just watching the highlights of that farce before I sent it to my friend in the military was painful.