Don't think it's a coincidence that one of his better or probably even his best game for us to date has come against a team like Bournemouth that likes to play football themselves. He had plenty of space and time on the ball to get his head up. The circumstances were much more like the ones he was used to playing in in the Bundesliga.
Wouldn't mind seeing him in midfield against Bayern, on the condition that both Henderson and Wijnaldum play too. He seems to be better when he has the more experienced players alongside him to guide him through games. The type of game Bayern likes to play, should also suit his style far more than games against the likes of Palace, Leicester and West Ham. He thrives in bigger spaces, quick transitions and higher tempo games in my opinion.
It's a nice confidence booster, but he'll face far tougher tests during the rest of the season if he manages to keep getting game time when all of Henderson, Wijnaldum, Milner and Fabinho are fit.