"I can remember having a conversation with a couple of the lads involved with England about what his best position would be.
"He's mature beyond his years and he was always very vocal in training when he was with us.
"At Championship level, he was a good midfielder, but in the Premier League you need different assets and I always felt that he would be a better centre-half.
"He's done exceptionally well and deserves his call-up.
"Out of the top teams, he could not have gone to a better club because Everton are well-organised and well-coached."