Kovacic is currently injured and could be headed out the door. Gonzalez only got into the team at the end because Kovacic was sent off against Bournemouth, and his 61 minutes in the CWC against the weakest team suggests he is still not trusted. Reijnders admits he is not a defensive midfielder and has never played in the League yet. That leaves us with Lewis or Nunes, neither of whom can be trusted to play alone in there, or a combination of Gundogan/Silva and their legs have gone.
I stand by the 'no viable alternative'. If Palace and Al-Hilal can pick us off, then better teams will, too.