EFC78
Player Valuation: £25m
Look at them at a similar age. Not right now.
Kane was only just getting good-ish now at DCL's age and had 3/4 very poor loan spells previous.
DCL has not had the loan experience due to us not buying a striker when Rom left.
I'm not sure why people aren't getting this. It's not hard.
It's as if any young player with fairly decent potential should be tipped to possibly go on and emulate someone like Kane though, just because Kane took a while to get going. Kane is an absolutely top class player, and if he took a while to show his true quality like you say (I know nothing of his time before he broke through properly at Spurs), then he is a one off.
Calvert Lewin is not going to be a top level player. 99% of the time you can see when a player has that kind of talent, and he simply doesn't have it. He has poor composure in front of goal, he isn't that great at heading for his height, his first touch is average to poor, he doesn't score enough...
As I said though, he has good potential to be a useful player for us coming off the bench. But he needs to start improving his glaring weaknesses if he is to make it here, and for me he has a fair few.