It is partly Martinez fault but Hodgson is as much to blame as he's a coward. England best performance of the last 5-6 years was in the friendly against France. Ross played in central midfield with Dier and Alli. That midfield was young, very well balanced and each player had a role that suited them.
All doesn't look right in the 10 and needs to be deeper. Rooney played from a wide position that night and played very well. Hodgson couldn't keep him there though as he has to accommodate Sterling and to a lesser degree Lallana (neither of them played that night).
I don't mind a manager having loyalty but Hodgson is inconsistent in how he applies it and often chooses the wrong games/players to be loyal too. Rather than looking at the France game, he will use a last minute win against Wales and a draw against Russia as evidence of a winning side.
I feel sorry for Ross. Redknapp was right when he said he'd build his team around him. I am not slating Rooney who's played well this tournament (and I'd have picked him) because had Rooney not played Hodgson would have shoe horned Wiltshire or Milner in there.
He is a truly awful manager and it's got to the point with the way he treats Everton players I hope England lose every game.