The way I see it is that with Pogba, Di Maria, and a returning Chiesa, McKennie is more likely to perform better than Arthur and Rabiot who do nothing. Rabiot is surrounded by world-class players in France yet never does anything useful for them so he won't get any better. I'd love them to prove me wrong but they won't. Also, with Kostic we don't need to play Rabiot on the left so who's spot will he take now? End this nightmare now.