So for now, we have to get some new faces in, endure until the injured players get back, and then we will see the real face of this team.

If there would be an opportunity for an immediate and clear upgrade (i.e. like Klopp to Liverpool in 2015) then I would say sure, let's go for it. But I don't see anybody like that available now. Also, a managerial change now would inevitably have a very negative impact on any incoming transfers...