I said earlier in the week that we won't sign anyone this week, and unfortunately I still feel the same way. Let's hope I'm proved wrong!
Players should earn their place in the team, it's a squad game. However, in response to your question; not Lallana since he's playing in midfield and Salah would be one of the two wingers. I suspect Coutinho will move back to allow a front three of Mane, Firmino & Salah. Could both Lallana and Coutinho play? When against relegation fodder, why not? Can't see us being that attacking against better teams though but nor do I think Klopp will drop Lallana; he's key to the pressing. He's not dropping Coutinho and we desperately lack a DM. So my guess would be Mane v Salah in tougher matches. They all pay in the others It'll be good to have options
They are not. Sorry but they just ain't cos we are poor mouthing this situation. Keane and Sarah will be bought and Milner will continue at lb.
I think Lallana and Coutinho is too lightweight in midfield - we would need a Gini or a Keita as the box to box alongside a Lallana or Coutinho. But as you say, we would have options.
The only issue with that is it means Firmino plays out on the wing where he's awful. I'd be more inclined to keep him central.
4-3-3 would allow us to play a front 3 of Mane-Firmino-Salah with Coutinho in the midfield 3 with 2 others. Salah may be a starter, but he also gives us options. I'm sure we would still see Coutinho play wide left at times and that is just what we need for once, options. How many times is it obvious what our team and style will be, because the 11 playing are the only 11 we would trust to play.