Wenger never ever criticises or puts pressure on his players, all he ever does is praise them, is it any surprise they never feel they have any to prove.

You can blame the players but at the end of the day, he's the guy who signs them, picks them, doesn't bring in adequate cover to create competition and is suppose who drills them tactically.

Players who aren't leaders (something Wenger doesn't believe in anyway) need guidance and leadership from the touchline, Wenger doesn't offer this either.

The buck stops with Wenger for me, he has total control over what happens, if players don't perform he has to take the blame as he signs them, picks them and doesn't give them a kick up the arse when required.