Hello everyone.
I would like to know how long it will take for a player with 80 potential to be converted into a Staff with 70 or more potential

when it reaches conversion age and has been with you long enough, you can convert it. It can normally be used immediately

Ancelloti: Bonsoir à tous.
J'aimerais savoir combien de temps faudra t'il à un joueur potentiel 80 pour qu'il soit reconvertir en Staff avec 70 de potentiel ou plus

About 147 days then his potential will be the same with his skilll as a staff.
It’s been a while old friend.

It takes 3 seasons for staff level = potential level