I would not be surprised to learn that Scarlett is our most consistent & technically sound finisher in training.
It's clear he's modelled his finishing technique on Kane, and I suspect he's a better pure finisher than Richarlison, Veliz, and perhaps even Sonny.
His loan at Pompey started very well (their fans loved him), but then a combination of injuries & tactical changes derailed his season.
Let's not forget that whilst Kane had four loans, he was prolific in none of them. In his final loan to Leicester in the Championship, he scored 2 in 13.
And when Sherwood gave him a run in the team, our then DoF Baldini told Levy that Kane wasn't good enough & we should flog him for less than a million quid (according to Sherwood).
As others have said, Ange's system fits Scarlett's predatory skillset perfectly.
The wildcard is, as we all know, he is unproven in competitive men's football.
At the very least, Scarlett needs a loan to a club where he will play every week as a CF. But depending on the state of our squad at the end of the window, if Scarlett continues to impress Ange in training & with his attitude, then I'd be happier to keep him as striker depth than loan him to sit on some other club's bench.