Liverpool will definitely face a lot of bumps in the coming days because Klopp was one hell of a manager this game has seen in years now. But, it's also to be noted that he built a squad with a crazy amount of diversity, filled with quality. What Arne Slot has to do is to just get the best out of the current squad, and bring in reinforcements where needed. Liverpool will need a solid defensive midfielder, a backup center-back since Konate is injury-prone, and one solid attacker for the future. Apart from that, they are sorted, and with the right tactics and management, they can be a good contender for the title in the coming seasons.
They are one of the top teams in the premier league, even when Klopp wasn't there, they were not this great but they were not some championship level team neither, they were pretty good at all times and I believe that they are going to stay pretty good. They will stay in top 10 for the next 50 years I am sure, with maybe a few exceptions if anything marginal happens, if not then they will stay like that.
So, the job isn't all that complicated, he will try to win it all but City is there and Arsenal is now very good so if he fails that's fine, Klopp failed many many times, specially in the last four years, whereas he won it just once if I remember it correctly, in this many years, so if you give Arne that much time, I am sure that he will win it once too.