That's how Silva plays. It puts a huge onus on our midfielders to be mobile, disciplined and tenacious, and also to look after the football and not leave us exposed by losing it in bad areas.
I don't think he's going to change his style so we need very athletic fullbacks who can bomb up and down all day, but also very well rounded footballers in midfield who are also athletes.
Just look at Guardiolas first season. He had sagna, zabaleta and clichy who were all well past their physical best. Then he spent 100m on full backs and 100 points later no one is criticising him anymore. Football has changed, and Silva plays the right way. But he needs time to get the correct personel to be able to do it effectively.