Are people judging Silva on his performances or Man City's? 5 assists in his last 6 games, 4 of those coming against Spurs and Liverpool, doesn't strike me as a loss of form. Won a few MotM awards in the process
MOTM awards mean nothing and assists/goals don't tell how you did all game. For instance the assist for Nasri(2-3 games ago, against Spurs maybe, can't remember which game) and obviously the Nasri goal, that was 10 seconds of a game where also the defence parted down the middle, it wasn't some world class pass, it wasn't at all a bad finish(I said the ONLY thing Nasri was good for, ball in/around the box and behind the defence, its probably a goal, everything else was crap last year).
Nasri and Silva were utterly useless for the entire other 89 minutes. A good performance is when you're good for 90 minutes even if you don't get a goal or an assist. One can't replace the other, 90 mins playing well and getting goals and assists regularly.... can't ask for more. An assist and playing like turd for the rest of the game, you can certainly ask for more. Walcott got a goal.... and was HORRIFIC for the rest of the game, doesn't mean anything.
MOTM mean less as they are often fan picked, and is usually entirely based on who scored or got the assist or who is the fans favourite. The problem with City is they pass to Silva all the time, constantly with no other plan, that works when you've got good players both giving him space and running into space to give him easy passes. He just isn't and never has been a "driving" force that will push a team forwards and constantly do players.
You can cope with Yaya having a bad game if Barry or Milner can take over, if you can rest yaya and have someone else play the same role for a game, stop Yaya getting shattered, but they don't at all.
Barry shouldn't be at City, he's almost entirely useless defensively and almost entirely useless going forward, paceless twit most of the time. Milner has the odd good game, rarely a stunning game certainly not the power, aggression or goal threat of Yaya.
Neither Nasri nor Silva should EVER be played as wingers, neither of them like anything that is to do with what wingers are asked to do and neither spend much if any time on the wing.