And sometime these managers are not the official casino employees. They are either freelancers or working from their office for them.
So whollely relying on others and not using your own understanding would put you in trouble. So be careful.
Managers are part of freelancers so generally they are only bound by marketing contracts to promote projects based on internal agreements, so managers only ensure the campaigns they manage will distribute payments, but do not guarantee the project is potential for further development.