If we sign another attacker, maybe an experienced striker or winger to complement Salah/Mane, then I would look at letting Origi go – he is at an age where he needs to start regularly to fulfill his potential and we could get good money for him. In that case, bringing Brewster back would make a lot of sense – he needs to feel he's part of this Liverpool team after being on the sidelines for so long and to absorb Klopp's coaching.
Sadly I don't see a place for Wilson in this team even though I'm fan and I'm leaning towards the same conclusion with Grujic. We might be better of selling both.
Can't Grujic a) back up Fabinho and b) take up the role of a Milner/Gini/hendo as necessary? So one of the midfield rotational figures?