True but we can't guarantee them that they'll start every game. Look at Brandon Williams, a brilliant prospect but Ole uses him sparingly in the right moments. Foden was a bigger talent than Sancho St City and he must be wondering if he's made a massive mistake by sticking around at City.
Dortmund probably offer them contract guarantees where they will start every game if they are fit enough to play.
How on earth will Dortmund ‘guarantee’ a 16 year old ‘will start every game?’. That’s nonsense.
And I have no idea why people here love to use the development of Phil Foden as some sort of stick to beat City with. He’s been given plenty of football for a teenager at a top club, has started a fair amount of games, big ones too. He’s exactly where he needs to be, and Pep has handled him brilliantly. Same goes for Brandon Williams who you also mention, who is nowhere near the talent of Foden and Sancho and has been given a very generous amount of football here.