The way Puel has treated King is one of the most obvious reasons why he hasn't endeared himself to the club.
When King didn't get a move in the summer, he should have been included in the 25 man squad and made part of the first team. Instead, he was discarded from the squad and left to train with the U23s. I don't mind a manager treating players like that if they deserve it - Benaloune for example - but there is no way that King should have been treated that way given his contribution to the club and stature with players, staff and supporters. It was rank poor management.
I'd much rather see the back of Silva and James than King. In all honesty, none of them are good enough for our first team, but if we want a back up central midfielder to bring on to steady a game or do a job, give me King over the other two every time.