I agree with some of the sentiment of OP. While I feel we potentially have two united level players in Lindelof and Bailly, and a solid defender in Smalling, I wouldn’t mind seeing the back of Jones or Rojo.
Jose has spent on two CBS who, for whatever reason, haven’t bedded in properly as of yet. Bailly has, in particular, struggled with injuries , but I think the guy has great potential for us.
See, in particular, this game against Liverpool. Bailly was excellent at pressing their front 3 when they made ground into our box and he demonstrated that he can time his tackles excellently. Look particularly to 5:00 when he made a last ditch challenge against Mané, where a less composed defender could easily have given the penalty away.
While I was relatively unimpressed by Lindelof for us last season, he proved he has what it takes at the WC against some tough opposition.
See particularly at around the 2 minute mark where Lindelöf showed some oh so needed for us defensive nous in his positioning for he cross, and was able to clear before the ball came in. He also, throughout the game, regularly pressed forward and played attack - initiating passes which really helped Sweden maintain the pressure.
If I had to loose one of Jones or Rojo, I would have to say our Phil. While I think the guy had been really unfortunate with injuries, I do feel he is a bit of a liability with the amount of mistakes he makes. I feel he now needs a club where he will be a regular member of the starting 11, why I was also happy for Blind to leave.
While I am a big fan of Maguire, I think it is obvious Jose has him lower down his pecking order (I believe José had Bonucci and Aldewei d) as his main targets. Both of these, especially Bonucci, have excellent positioning and reading of the game, and would help our younger CBS develop.
I think the main problem is that we have higher priorities elsewhere, particularly Full Backs, especially when such a perfect target as Sandro is available.
I think this clip especially highlights what Sandro can bring to us. He mixes energetic tracking back using his plentiful pace with his fantastic crossing. He would be such a perfect signing for us we almost certainly won’t get him