They should have pushed it instead of trying to play nicely.I've spilled one previously, which was the dossier he was central in putting together in 2012, that saw Walton disappear to the USA and Mason removed from our games for a while. It also saw Mike Riley come up to the Etihad to do the Q&A with Points of Blue.
Another was passing on key information that the club only partly acted on in the 2019/20 season. Had they acted fully, it's quite possible Liverpool wouldn't have won the title. They did act on other Liverpool-related information but it's something I suspect they already knew.
I also know for a fact that there is a member of staff at City who is on 1st name terms with pep and every player who knows that a Premier league ref is a Liverpool fan (so presumably it will have come up in conversation at some point).