The team he inherited, tight arse owners, competing against a cheating Arab club.
Considering where we were, I don't think there's a single manager in the world that could have achieved what he did, on and off the pitch, with not a single public grumble about the club, owner, etc.
We can nitpick his flaws all we want but he was the best thing to happen to the club in 40 years, and as it's only Klopp that could have done this, he gets an A++ from me. Danke.