I agree with every point you make. It has to be said that Pep has handled De Bruyne's minutes and Foden's progress extremely well. Now, Foden is his natural successor and they will have absolutely no problem when De Bruyne is gone. That's how you manage aging players with younger talents coming through.
When it comes to us, we have made no attempt to do anything at all. We have Bruno here who is left with all the burden, but what happens next? Are we going to change our style of play? Are we going to continue playing him 90 minutes every game? What is the plan when the time comes to replace him, because it will come, maybe sooner rather than later. De Bruyne is unreal, but even him at 32 isn't the same player, and Bruno is going to be 32 when his contract expires. I really hope we don't plan on renewing his contract now, because that would just be repeating the same mistakes we've been doing for the last years. I'm confident in INEOS, though. They don't seem to be fecking around, and they're clearly not as sentimental as fans.
Personally, I hope we move away from playing with a number 10, unless we can get a Wirtz, Ødegaard or Foden type of attacking midfielder. I just think it's way too much hit and miss with number 10s like Bruno Fernandes. It's a bit of a dying role as well. Modern teams focus more on packing the midfield, because it's so easy to get outnumbered in midfield with a pure number 10, and then you have real problems like losing control of the midfield. We've seen that time and time again this season.