Oh I agree with you mate, he will adapt. I just think hes adapting slower than, for example, Rooney did.
Yes we can point to lack of game time, but its obvious that Rooney was terrorising youth football and terrorising his team mates in training. For me thats why he played so much. Barkley looked really good defensively at the weekend, but going forward for me he doesnt look like hes going to create anything, which im sure is a confidence thing.
Think your right, either he has to get game time or send him away for the season in the Championship