Jürgen has at his disposal a squad with WORLD CLASS players at every position with one of the most expensive wages in the league. WTF are you talking about "working miracles". He's not being asked to win with a championship team for fucks sake.
Were Robbo, Mane, Salah, Fabinho etc considered excellent/world class when they joined? Lot of people didn't know who Fab was. Mo had a few dodgy spells with diff clubs. Mane was at Saints. Robbo came from nowhere, well Hull. The list goes on.
Roll forward from when we brought them in, to the end of the 2019/20 season - these players were worth many tens of millions more than when they were signed.
Jürgen turned this squad, these players, into PL and CL champions. And made them household names.
FSG haven't had to do a Sheikh Mansour, or an Abramovich - they have invested, but not to the same extent - Jürgen has just done an unbelievable job.