You'd think teams would do their homework on that but then I'm often surprised that they don't. Hence Liverpool sticking Ziege in as left back in a flat back 4 and wondering why he wasn't as good.His problem is if he goes he needs his new team to play him in the same position as he plays for us now not stick him up front on his own as that dont work.
Also remember Moyes commenting on how good Yakubu was in the air and would win lots of headers after he signed for Everton when that wasn't his game at all.
Think Chuba could play wide in a front 3 (like Rashford) but yeah, he's not an orthodox 9 at all. Wouldn't be shocked if someone buys him and tries to play him there though.