I agree with you on Tommy Doyle, I think he could be at the very least a squad player, he just needs to find his role in midfield and get some experience.
Chelsea made the conscious decision after Conte to make their golden generation the priority, and it only took 18 months of Lampard championing them for Hudson-Odoi, Mount, Reece James, Christensen & Abraham to pick up the experience and confidence that Tuchel saw them as proper first team players, not academy kids.
I don't think anyone wants City to appoint a Lampard, but the amazing thing is I don't think we'd need to. Pep has said so many time he prefers working with kids, he wants to be a youth coach in his retirement. If we could win the CL this season and tick that off, I think he would absolutely relish the idea of being told his priority for the next season(s) was bringing through 3 or 4 kids and setting up a generation of homegrown players for the club to be his legacy after he's gone.
I think there's a lot of opportunities coming up as well over the next 2 years. Fernandinho is going, Mahrez will be 32 when his contract expires in 2023, Left back is wide open. I personally think Laporte will try to move to Spain again, and Aké may look for a club he starts at every week after 2 or 3 years as a back up.