He is low on confidence right now evidently.
I am happy for Chamberlain to get a run of games though. He needs to focus on efficiency. He is only a liability when he does not defend and gives the ball away cheaply in dangerous areas. He needs to cut that out. That aside, even when he isn't very involved, there are one or two instances in the game where he makes a difference and infuses energy.
He needs to cut out mistakes that might cost us defensively and help the full back even if offensively he is not doing much.