I thought Ceballos wasn't so bad, he certainly wasn't as responsible for so many disasters/near-disasters as Zin (who served up at least one in any game he featured in) and that was in a much less disciplined team
Likewise Willian was a waste of space but he didn't costs us goals and near-goal chances regularly
and Soares didn't really play much
Xhaka had one decent season out of six