I will promote Adam Lewis as the substitute for Robertson regarding LB, and remove Moreno; however, Lloyd Kelly could be considered as well. For RB, I am tempted to give Clyne another chance as a substitute for Trent, but at the same time I want to use him as part of a deal to buy Maddison. For now, my decision is to promote Hoever and Camacho, since I lack knowledge of cheap, quality back-up options for RB, and Wan Bissaka will be very pricey. The main purchases will be for CB positions. Mathis De Ligt seems to be the most obvious choice, however we already have Gomez for the same position. If we decide to play Gomez as a full-time CB and stop playing him as RB (from what I have seen, he usually caught injuries when playing as RB not as CB), a cheaper Klavan-style substitute option (Nathan Ake e.g.) is the way to go.
Sell Lallana, of course. I will try to buy James Maddison from Leicester, and will include either Lallana or Lallana + Clyne to reduce the cash payment. James Maddison really impresses me as a creative midfielder. Actually, he leads the League this season in terms of key passes per game (2.8) and total chances created (98), exceeding every single Liverpool midfielder. Also, he is a home-grown player and since at least two of our home-grown players will leave the club this summer, there will be a gap to fill. If Maddison does not flop next season (well, like Henderson in his first season here), Jordan Henderson will almost certainly go to the bench. If the Maddison deal fails, I will buy Julian Brandt, but it may take time for him to adjust to EPL like in the case of Fabinho, and if so Henderson will be still my No.8 starter in the medium term.
Bring back Harry Wilson and use him as a substitute for Mane. However, either Ziyech or Neres will be considered, but I will probably go with Ziyech. Brewster and Origi will be used as Firmino's backup. The same will be applied to Shaqiri regarding Salah's position. Sturridge must go.
TAA - Gomez - Van Dijk - Robertson
AOC - Fabinho - Maddison/Brandt/Henderson (the midfield formation will similar to the one in our home demolition of City last year CL)
Salah - Firmino - Mane
What I would say is that we'll ideally get to a position where all departments have debatable first choice players in a 'best 11', like is the case in midfield.
Genuine competition for places to spur the players to even greater heights. Just look at how the midfielders, including Henderson, have progressed this season due to it.
Genuine rotation options. Just look at how the intensity of our midfield has been maintained during the run in, compared to last season, due to it.
Genuine quality options from the bench for all matches. Just look at how our midfield has benefitted from substitutions in matches, such as Southampton away and against Barce.
Enough quality in depth that the normal 2 or 3 injuries you carry in the squad at any one time leave you with similar level players to field and a strong bench.
There's plenty of football for multiple options in each department, but for players to play without the level of the side dropping and results being at risk, we've got to upgrade a few.
Having a player like Moreno has arguably been a complete waste of wages, given that he only plays as a very, very last resort.
Ideal summer for me is the signing of a quality versatile full back, De Ligt, an attacking midfielder come forward and a pacey winger, with Moreno and Sturridge released, Lallana and Lovren sold.
The ruthless side of me would also cash in on Shaqiri and upgrade him to someone more usable, as I don't see him as a pacey enough forward, or quite good enough attacking midfielder.
It really depends if we are going to carry a larger squad to cope with potential extra competitions.