That's no excuse!
So you're essentially saying he's another Willian then? Sure, let's go sign more brainless players because our squad hasn't got enough of them!
So far I've not seen any big clubs genuinely been linked with signing Mahrez, not any of the English sides or others around Europe. That itself probably says a lot and last year, I recall Arsenal were the only ones who were reportedly interested in signing him. If no one was lining up back then to sign Mahrez when he was supposedly on top of the world, I don't see why they will be keen to sign him after a desperately average season.