I honestly think that what we've built now is a club that is a "machine". We don't rely on individual brilliance from any players, our team is a team. Sure, the players in it are some of the best in the world, but the club is quite capable of buying pretty much any player in the world - apart from Kalvin Phillips - and making them world class. See Rodri, Dias, Stones, Walker, Ake, Bernardo, Foden, Haaland, Gundogan etc etc. But it's the way we play which is the main thing - possession football with intelligent players.
When Pep leaves, it won't be like Fergie leaving. The club will know - now - who the replacement it. It will be someone who plays a similar style to Pep with possession football and who may bring some new ideas to the club.
I hope Pep stays for many more years but I'll just enjoy there here and now until he decides to move on.