If Buendia is injured and we're selling Aaron Ramsey, we probably need to keep Dendoncker as a midfield option. Even though he's not like-for-like with either of those, we could play McGinn, Luiz or Tielemans further forward, and so would need some cover.
Davis and Hause would probably be sold or loaned out if we can't find a buyer.
I like Traore, but we probably have too much competition for him to get a game now, so sell if we can.
Add Olsen to the list.