DCL started in his natural position, Kean didn't. DCL had last and this year to prove his worth and he has failed in my opinion. I get your point and I would agree if I could see any potential in DCL. But, I think he is terrible.
He wouldn't start for any other team in the league.
....Kean started in an attacking position, he wasn’t playing as a conventional winger, he wasn’t working back and covering Coleman. He got the ball with defenders in front of him, he got the ball in the box, he was put through with a run on goal.
Lots of strikers start from those wide positions, even Lukaku profited from it. Kean wasn’t asked to play like Stanley Matthews!!