As the issue with Aguero easily cristalizes, the number of goals you score isn't the sole determinant of your contributions.yet is still up there in the goal scoring charts young and classed as assocation trained
You have to be good in possession, have good vision and movement, understand the press and show consistent energy and ability to pass in tight spaces, in circumstances where quick thinking is not a luxury but a basic requirement.
Lukaku lacks most of what I've detailed above. And its a lot easier to score as a striker when you don't face packed defenses as the norm. Lukaku is best in open space on a team that counter punches. Its nothing like he's see here.
He can adapt and improve, anyone can. But to think his skills as presently showcased will transfer over would be a bad bet.
He is poor at everything you need to be good at to succeed here: Bar Size and strength.