Pep, Kompany, Arteta, Alonso off the top of my head
I agree in principle with you but I saw someone talking about this a while ago and his argument is what does a top player know about playing at say League 2 level? Everything about the club/players/fans/media is completely alien to someone who spent their entire career in the top flight.
If anything trying to coach players at that level would be way harder for an ex top player as they wouldn’t understand why the players can’t do what he’s asking of them because they aren’t talented enough