I agree we should not rush Foden or Brahim and that we shouldn't judge Pep on just last season.
But for Sancho point, I honestly don't understand why people can't see he wants to leave. We have bought so many young players who can play in his position and we are rumored to buy Mbappe or Dembele aswell. In 2 years, when it's time for him to be a regular first team member, I wonder how much young attackers we will have bought. Barca didn't go buy 4 of the most promising young attackers when Messi was 15/16. Put yourself in his shoes, you are 16/17 and you have seen your club buy players and not give players who were deserving of a chance a chance. Then on top of that, Sancho doesn't have an affinity to City like Foden does. Yes we might have shiny facilities, good pitches and a world class coach. But young players don't need all that to be top players. Players like Yaya, Silva, Aguero, KDB, Hazard, Sanchez all have one thing in common, and it's not any of the things above, it's that they consistently played first team football at a young age. We at City can't offer that. Hence, Sancho leaves where HE believes he will get a shot at first team minutes, atleast more minute than he will get at City.
I can see why he wants to leave, I just think it's too early for him to have that mindset, considering he just turned 17. I just think he is being misadvised and there is bad information going around; everybody saying he has a better chance at Arsenal and Tottenham are just wrong, players don't get chances at those teams until they are 20 years of age, Alli at 19 and he was bought after playing men's football, even if it was a lower league.
There are people saying he should go to Dortmund, Dortmund have lots of young talent they cannot just take them all in, in fact, they cannot even give Emre Mor (20 years, and a huge prospect) enough minutes and are considering loaning him (with some rumours of selling him).
I just think my mind works differently as I try to take the positive out of all the experiences that happen to me. The links we have with NAC Breda and Girona FC is a phenomenal opportunity for our youngsters.
I would be thinking that it's not the most important thing in the world as an academy player to get into your club's first team, the priority should be getting a good football education and experience; so I see nothing wrong with the pathway of 1) First class academy football --> 2) loan abroad at an affiliate club to get first team football regularly --> 3) get evaluated to come into first team or get sold and play professionally elsewhere. Now maybe we might have the odd player get into the team never go on loan, but I don't see it happening, Tottenham hasn't done it (Kane, Rose, Walker etc all loaned for MANY years), while Rashford happened out of circumstance by LVG (for which United players give Mourinho credit for, for some reason).
I'm not all that upset if he leaves, he is a phenomenal talent for his age, but that's for his age, and we have many great talents down the line that I only want players who want to be here.