Pep's success and the comparisons with Ferguson are rattling United fans. They are concerned :)
What United fans forget about Pep is his tactical influence on the game. Tactically, and as a coach, he's on a different level to Ferguson. What Ferguson managed at United was unique in terms of building and rebuilding teams over decades. But it's also unique to win multiple trophies in different top leagues while communicating your tactical innovations in different languages. I'd say the latter is more difficult, even if one works with top players. The combination of being a great tactical mind and being very successful at communicating your ideas and winning many trophies in different countries is very special.
When you break it down, there's a lot of things in Pep's favour, just from his time here:
He has the best win percentage.
In December 2016 Chelsea set the record for most consecutive wins (13). Since then City have beaten that number on 3 separate occasions across 3 separate seasons.
Scored over 100 league goals in multiple seasons.
100 points in 1 season. 98 the next.
More high quality, dominant football.
More tactical innovation.
Both more bold and bald.
Came out on top against a Liverpool side that got 97 points.
Broke multiple records over multiple seasons.
That's off the top of my head.
There's two, maybe three big things going in Ferguson's favour. One is the CL, and there's a chance that advantage goes. One possible is the fact Ferguson won the treble, but if City win the CL then it'll be two different trebles in Pep's favour. Lastly is the longevity. Which is a big favour to Ferguson.
I don't count the rebuild stuff anymore. Pep built the first title winning squad and he's effectively had to rebuild things for this season, after everybody doubted he could on both occasions. I would wager that he could do it repeatedly if given the time.
Only a United fan would argue Ferguson didn't have the financial dominance btw.
There's a reason people are praising Pep the way they are. Ferguson won a lot of titles but they never really ever blew anyone out of the water. In all his time there he only twice hit 90 points in a 38 point season, and 4 different managers have beaten his best total. And he never toppled a truly dominant team. The one and only spell where he was up against a real juggernaut (Chelsea 04-06) who could put up a huge points total, he lost both times, comfortably so. In fact, the one time they actually did put up a fight against a high points total rival of any kind, they lost (2012).