Williams has everything you could want in a winger, hes big, strong, fast, footballing IQ so he can combine with other players to open spaces, dribbling. He has everything you can't really coach. I do want us to sign him.
My big worry is he's got talisman status in Bilbao. If you've never been behind the scenes at a big club it's hard to explain but he'll light up every room he goes into. Everyone will be hyping him up all the time playfully. Saka has it here. Cesc probably had it here when he carried the team for so many years, playing through injury after injury. Havertz had it in Leverkusen, you're 100% the guy and everyone is behind you. In that situation you don't need to worry about having a bad game or a bad miss.
When people leave that environment they sometimes struggle a bit. I would have liked William's to have broken out at least in that environment before a move. If he comes here on big money and gets 5 goals like he has this season, he'll get constant flack and it'll be 100x harder for him mentally. Then we'll need him to have some real grit.