Re: @AC "Hah, that will be the day......"
try to push for admin access for themselves...
That, right there, is your problem. And it's an easily enough problem to solve. One bit of network devastating malware traceable back to the machine of a manager with admin access should clear that one up. If it doesn't then repeated infections all traced to the machines of managers who should bloody well not have admin access, along with a couple techs making it clear why this keeps happening, will.
Why would the managers keep getting infected? Because social engineering is too danged easy when people don't understand the threats, that's why.