I disagree with everything you just said.
Lamela WAS given strength training. Then he got an long term injury (possibly related to heavy resistance training..back issues etc). lamela is never going to be a beast through training. He and Eriksen need to be flitting in and around the final third with protection. A defender should not be directly behind either of them. Both should be working on their speed and sharpness and getting to gel.
Capoue is a nailed on class DM that was a victim of the high line and selling Caulker. We have enough beasts in this team to let Lamela and Eriksen do what they want in the final third. They should be the architects of our creativity and finishing. Not dumb ass'd wingers derping around.
Sorry still need to see capoue a lot more to make up my mind, his performances have not blown me anyway. Lamela however has shown glimpses of class really want to see more of him.