If he was 18 maybe I could see it, but I've seen 60 T payed for 97 rated 27yo DC. So these things tend to not surprise me any more. If only more people knew and gave negotiations a chance.
In my experience most negotiation players have been amazing and have been fast growers (obviously I tend to go for U21 players). I only get 1 scout every 3 seasons to quickly increase a gap in Midfield or Attack.