OP I believe you know what you signed up for. You see this casino which you claimed changed management is not what you think they are. Did the new management really looked into the activities of the casino they are signing up for? This casino has a bad reputation already on this platform and to be honest for years this casino been flagged and tagged with lots of complaints from their clients of being scammed of their hard earned resources and winnings as well. OP I think you should know that already because you must have been given a brief before you took over as their representative here. So be ready if you can because your casino chances are narrow.
I like your subtle advise given for the new manager to have a brief on what's already on ground of which I believe the team may or may not have tip him about it, but going by all these i don't think it's something new anymore to him, the casinos already had a bad reputation on the forum and if he's ready to take a responsibility then he should know what's ahead but the question now is not all about the manager but the casino itself, those behind the management are the ones that should be the the first agent of change in their doings.