Silva hasn't been great for about a year now, had a great start to last season but apart from that he's been no where near as good as the hype around him suggests. Mata for example is much more consistent
He is, but he also has a tendancy to drift in and out of games and be a weak girl too often. He and for some reason Hazard got loads of praise for the Arsenal game, when we were terrible and Hazard was completely crap and Mata outside of his delivery for the goals, was actually terrible, gave the ball away constantly, misplaced passes, etc.
Spanish = automatic fawning, nothing more or less. The only player who didn't automatically get it was Cesc as he was at Arsenal before Spain won 3 international titles. Silva didn't get bought by Real or Barca for a reason, he's small, he's got a tendancy to kick out and trip a lot when the game isn't going for him, he disappears in big games. Its why he gets less rated friendlies and less starts in big games for Spain, same for Santi, and to a lesser degree Mata. Mata is easily the best of the three, and while he can drift in and out of games, when he's in the game, he can be incredibly effective with some really fantastic passing to create goals.
I don't think Mata is necessarily brilliant at defending or anything, but when the game isn't going their way, backs to the wall kinda game, at least he tries to defend and help the team, Silva never does and Santi hasn't proven effective at that yet.
Wenger when talking about this game seems to keep saying things similar to "lots of younger players", not much experience and then single's out Meade for a decent performance.... which would be because the other young players, Jenks, Coquelin, AOC, have all played several champs league games before, loads of first team games and while "young" aren't inexperienced or new. For an "youth" side, he played very few reserve/youth players, and only had one new face in the team at any one time. I think back to similar situations a decade ago, a throw away already qualified CL game or a early FA/league cup round, and we'd have at least 5 reserve team members in the team and we'd still look better than we did last night.