I will always believe that the reason he developed more as a scorer is because pep refused to play him in the middle and always pushed out (and up) on the wing.Wirtz or no Wirtz we have a big KDB shaped hole from next season. apart from him we have nobody regularly setting up players. Foden never really got the hang of it sadly despite he had David Silva and KDB to learn from, he became more of a goalscorer on his good days than rack up assists.
Imagine the fee being tossed around for Foden if he'd been playing as 8/10 for say everton for the past 3 years
