Aye, it's a weird thing.
I remember thinking David Murphy was a big jessie and would be eaten alive because he was out with blisters at the start of his time with Hibs. He went on to be the best full-back I've seen at the club.
On the flip side you have Elias Melkersen. It looked like we had unearthed a diamond when he scored 2 at Fir Park in the cup. He ended up being a lightweight passenger.