Firmino 27, Mane 27 & Salah 27 next month.
While i would say this scenario would fit best, Liverpool unfortunatly over the last 3/4 years have been very savy in the transfer market and that includes when to sell.
Another hope of mine was the players would get a Dortmund style Klopp burnout, just like what happened to Hummels, Sahin, Reus, Bender, the 2 full backs, Kagawa & Gotze. They all fatigued so much constant injuries occured and some have took years to get back to the players they were while some havent even returned to that.
Looking at how over his years at Liverpool Klopp has gradually improved problems that have arrose in previous seasons (set piece defending- get van dijk & allison, christmas period - use shaqiri over that period at a small fee and play a less intence game), he seems to spot the flaws and fix them.
I wonder if firmino's latest knocks and niggles are a start to this or just a rare occurance (i cant think of to many players out for a long time with muscle injurys this season), and if it is they may look at shifting firmino before he starts to regress. They could easily get PSG or someone to play 100m+ for him