I wonder how he will mentally cope again in England. The media and fans were always hard on him, especially later on when he was at Man U. Coming to Inter was a breath of fresh air for him and a definite confidence boost he so desperately needed. If he doesn't starting scoring immediately for Chelsea he could very likely revert back to the Lukaku we knew pre-Inter.
It's always seemed like he's been wanting to prove all of them wrong when he first came here, I think his plan was to always return to England and shut up everyone who doubted him, which he already has done imo. Best of luck, Romelu. I do think Tuchel can get a lot out of him.