You can debate whether Silva has made some players better or worse but there is no doubt when it comes to Sig, its worse.
The role he asked to play is simply nonsensical.
Is like Silva just watched the Swansea youtube highlights with him and Bony and went ok I'll put him behnd the lone striker.
But Swansea played completely different and where they struggled with Sig qualities, well Silva struggles in the same way. Ive had major issues all along with this. I dont think Ive watched a match simve Silva arrived where I havent cursed both Silva and Gylfi for whats going on.
But this is layed at the feet of Silva. Gylfi is clearly following Silva instructions and its clear he not suited to them/doesnt believe in them. He keeps on playing to them but you can see he knows its stupid and his heart and head arwnt into it. This is why he is petceived as slow and lazy - but he really isnt. He's not Bernard quick, but then Bernard is not Gylfi quick. Same goes for skills.
A good coach would know how to get his two most skillful players to compliment each other. Ie give the team a chance. He has utterly failed to do this so far.
There are no excuses here. Silva came to the club knowing Gylfi was the marquee. If he didnt fit with his intended tactics he had three options 1. drop him - poor decision. 2. coach/manage him to play a diff role and if that doesnt work drop him - better decision 3. Dont come to the club in the first place - best decision in hindsight.
There is only one way to play Gylfi in this side and thats as a box to box. He has to play deeper. If he cant hack the work rate, if he cant put in the defensive yakka, if it doesnt work them drop him...sell him
But ffs at least have given it a go.