i hope he understand that defender is not like mid fielder,you can change midfielder anytime and not defender,defender need a lot of chemistry,they are just like couple
that is why some time you can see defender will be a bit shaky is there is some one new on the line especially central defender.what he should do now is start to prove himself worth 1st team more from now.he got a lot of potential,but if he really want to go is up to him.