Coutinho is the player that makes those three tick. His importance cannot be overstated imo.
it's being slightly glossed over but they're losing another of their better players in Can as well, not even sure they've strengthened too much.
Think Can is better than Keita and Coutinho leaving will massively reduce their goals, VVD is ok I guess but not exactly Baresi.
Will be lucky to make top 4 this year and have no chance next year. Disastrous window for them.
I'd say it's Firmino who actually makes them tick rather than Coutinho, he's a weird one in that he's not exactly brilliant but he's extremely intelligent. Opens up all kinds of spaces with his runs, holds the ball up well, drifts in between the lines, drops deeper when Salah hits the spaces.
Don't get me wrong Coutinho is obviously a key player and will be a massive miss for them but I don't think Solanke, Ings or Sturridge offer anywhere near what Firmino does. As for Keita v Can I'm afraid Keita is superior in nearly every way, still shocked he's not going to one of the top teams because he's going to be the complete midfielder within a year or two.
The problem they face though is that any time somebody becomes consistently brilliant they will attract interest from bigger richer clubs but then that goes for everyone bar Real, Barca, Bayern, PSG, City and to a lesser extent Juventus/Chelsea.