I agree generally with what you are saying, but he does himself no favours. Look at yesterday, why not Maddison and Gray at half-time, or both before half-time. Why wait with Gray? Why Kingy instead of Ricardo?
I'd say four. Chilwell is improving but isn't there yet. Some of his final ball distribution is woeful. If I was taking five players at the moment I'd pick Albrighton ahead of Chilwell, (obviously not as left back though).
Silva ran the show against Fleetwood in the replay at our place. Looked a class above everyone else; notwithstanding it was against weaker opposition. I think it might have worked with him if he'd been given a run of games.