Pep knows and sees all.
His handling of Phil has been exemplary. Lest we forget, he oversaw the emergence of Messi so knows what it takes.
Foden already must be one of the most successful English players, even ignoring age. Two things Pep has done:
1. Ensured he is not a one trick pony. He has the adaptability, mental and physical strength with great awareness and skill to adapt to any position/style/team (Sancho's weaknesses have been exposed after leaving City prematurely?)
2. Taught him about tempo and influencing the whole team yet still improving his personal performance. (Palmer has had a great, injury free season but his performances and influence still does not match Phil and will come under scrutiny during his second Chelsea season as teams know how to play him and will target him for personal attention)
It seems Phils willingness to learn, long term thinking, love of City and respect for Pep and others at the Club has paid off. Not only has he emerged as a world class player amongst the elite, arguably player of the year by all, as well as all the trophies to show as proof at a very young age.