Havertz did, and has been living off it since.
Anelka did indeed, JT missed the more costly one. Did it tarnish his legacy?
I don't disagree, but you see my point, what does a good signing look like? If it's just a binary good or bad it's difficult to call with a lot of players.
Is a legend a good signing ? or a fantastic signing ?

We need to break it down to
fantastic, then,
good, then we get to
mediocre, then
terrible and finish off with
complete nightmare signings. Five categories 2 positive, 2 negative, and one neither positive or negative.
Fantastic = JT, Lamps,...etc
Good = Anelka, Ballack...etc
Mediocre = Torres, Kalou
Terrible = Bakayoko, Saul
Complete nightmare = Lukaku, Mutu,